初中数学计算题训练

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初中精选数学计算题200道

初中精选数学计算题200道

15.1.2.3. 计算题 c l+ ( n +3) o -3 27 + I5x+2 _ 3 x2+x =x+1 錘+丄=1 x-4 4-x4. x2-5x=05. x2-x-1=02 __6.化简3】9x +67.因式分解 x 4-8x2y2+16y 4 2 1 5 8.2x+1 +2x-1 =4x2-19.因式分解( 2x+y ) 2 -(x+2y) 10.因式分解11.因式分解 12.因式分解.3 -2 Ix 4 -2x1-8a2b+2a3+8ab2a 4-16 3ax2-6axy+8ab213.先化简,再带入求值(x+2) x2-2x+1 (x-1)^^ ,x= 314.(-‘3 )o- I -3 I +(-1)2015+(1)-11 1 a2-a(a-1 -a2-1 a2-116. 2(a+1) 2+(a+1)(1 -2a)2x-1x-217. (苻-x+1) ' X2+2X+1 18. (-3-1) X (- 2 )2-2-1 + (- 1 )320. (x+1) 2-(x+2)(x-2) 21. sin60 ° - I 1- 3 I + (扌)-1123. 若 n 为正整数且(m n )2 =9,求(f m 3n )3 (m2)2n 24. 因式分解 a2+ac-ab-bc 25. 因式分解 x2-5x+6 26. 因式分解(x+2)(x+3)+x 2-4 27. 因式分解(a2+1) 2-4a2 28. -12016+18 + (-3) XI -J I129. 先化简,再求值 3(x2+xy-1)-(3x 2-2xy),其中 x=1 , y= -5 30. 计算 3-4+5-(-6)-7131. 计算-12+(-4) 2XI -点 I -82 + (-4) 3 32. 计算 20- (-7) - I -2 I 1 5 1133. 计算(3 - 9 +12 )X (-36)19. 1 2x-13 4x - 222. (-5) 16X (-2)15 (结果以幕的形式表示)34. 计算(-1 )2-4 X [2- (-3) 2]x+3y=6解二元一次方程组 笃"-生严=-乙 ①「5y-x=3 ②解不等式 3 (x-1 )> 2x+22(X -2) 15化简 a(a-1) 2-(a+1)(a2-a+1)a b(a-b +b-a )35.36.37.38.39.40. 41.42. 43.44.解二元一次方程组 x-2y=1 ① 解不等式 3x+1 3 1当m= &2 ,求代数式 1 m+一m (2)-1- C. 2 -1)o +tan45o-cos60o-31 +cos30o tan60°先化简再求值x2-5x+6 3x2-3x (-法)・(1+总),其中x= 3 解二元一次方程组 x+2y=6 3x-2y=2先化简再求值 y2-x 2,其中x=-1 , y=2 解方程x2-3x=0-2-1+ (-3.14)o+3 -8 +cos245° 1计算(一 :3 )2+4 X( - ) -23 先化简,再求值(a+b ) (a-b)+b(b-2),其中 a= 2 ,b=-11 15+2 )0+(-2) 3"3-3tan230° +2 (sin45 ° -1)2计算-22+(3-3.14) o+3sin30 ° 计算(1 ) -1+ (2006- n ) o - 3 tan60°(a - 2) 2+4 (a - 1)-( a+2) (a - 2)45. 46. 47. 48.49. 50.51. 52. 53.54. 55. 56.57. 58. 59.60. 61. 62.6- (2)21计算2-1a化简[赢 +a(b-a)」• abb2] a+b计算 2013- ( n -3.14 )o + 1-3 I + (-1)22i - 1计算: 计算: 计算: 咼二1-〔一卜 丄 i ■ :■;-tan30fl X |i-^| - (5兀+2013) °X ( -1)_2U-计算: 计算:I- 1 "I : ' - : '- >1一-1s'| -4|+ ( -1 ) 2013 x (K -3 )1' " 2V4- C-3) Z +2013°- (j)(—1) 2°13—| — 7|+ [X \:打「丿 + () 51.. :丨.--计算: _!::■: ' 1 ' "1-解方程:: .x ~ 1 x+1计算:*> I ■ II : ■:〕:"求不等式组二二;.的整数解.2 先化简,再求值:(1-—)*——,其中x=^+1. x _1 1 - s I -!解方程: x _ z z _ X(-1) 2013 - |-7|+V9X (V?-兀)°+(4)_12 先化简,再求值:—+「,其中x=2二+1. X 2 -1X 2+2X H葢—163.64.65. 66. 67.68. 69.70. 71. 72.73.74. 75. 76. 77. 78. 79. 80.81.计算: Q) T-(兀-1) °+|-4| - (-1) 2013 -逅•计算: /L 、 2013c,L 、 2012,L 、 2011(1+丘) —2 (1+眉) —4 (1+頁)计算: (( - 2 ) 0+ ( - 0.1 ) 2013 X (10 ) 2013计算: _1 _兀 +(-) .解方程组:-2解方程:「丄—: 21- 4-3s-6 2解方程:计算:(—1 ) 3+ (匚+1) 0+ 7解不等式组: 2 (x- 1) <x+3厂一2x2 _xy _2y2 = 0先化简,再求值:x+1-丄片),其中 x=V^ - 2.X 1X _ 1-5 I +22-( '3 +1) o 2 X ( - 5) + 23 - 3 +182. 83. 84. 85.86.87.88. 89.90. 91. 92. 93.94.95.96. 97. 化简求值: 2m -2m 1, ’ m T 、2(m-1),其中33 - a 2a —4■- (a 25 a -2)a化简1 1 - l x / x2 + (— 1) +3—2 —(―2011)■ a a a2-b2 - a-b 2x 1 x2-4 - x-2 (a+b )2+b 1a-1 (a - _ ) ' a 丿+ a 匚1 ) x 2-1i 1 十一1 X 丿 xf.1I1 +< x -22(a - 1 +一) (a - b ).x 2-4 ,其中 x=- 5-(a 2+1),其中 a=』2 - 1 - 2a 1 a其中a —2-1.x 2- 2x + 1 3 r —2)5-2)0-| -引b. __________________b-a(11 a 12 a)-108.先化简,再求值(Jx -2x x -4x 4厂坛,其中“2107.(a 1)a -1a 2 _1a 2 -2a 1先化简再求值:a_1 a 2 -4a ・2l2-2a ・「a 七,其中a 满足298.化简:(-^Z_ 2 x —1严匸兰,其中x=2,2x -2x x 一4x+4 x +4xa =3-2 2,b =3、2 -3 .整数且—3v a v 2.106.99.化简并求值:?士 — b2,其中100.计算:■ a +1 4 ~2_ ~2<a -a a,2 2a —3-1101.先化简,再求值: 102.先化简再求值:3 2x~6x 弐一—,其中 x =— 6. x -2x 2-xa晋,其中a = 2+」2 .103.先化简,再求值:a — 1a2a 2— O 亡,其中a 为104.先化简,再求值:2x,其中-1,105.先化简,再求值:士 ^2 "2),其中x 冷109.先化简:(丄_a ・1)Q 竺,,并从0, -1, 2中选'a +1个合适的数作为a 的值代入求值。

初一数学计算题及答案50题

初一数学计算题及答案50题

初一数学计算题及答案50题1、计算题: 48×3+27=()答案: 1652、计算题: 90÷( 30-24)=()答案: 153、计算题: 10×[48÷(16-8)]=()答案: 804、计算题: [40-(8+2)]×9=()答案: 2705、计算题: (12-4)×3+9=()答案: 336、计算题: 12÷[( 41-34)×2]=()答案: 37、计算题: 3×[28-(13+7)]=()答案: 488、计算题: 18÷(3-1)+6=()答案: 129、计算题: 17-8÷(4-2)=()答案: 910、计算题: (9-5)×(7-2)=()答案: 28以上只是初一数学计算题及答案的一部分,希望对大家有所帮助。

初一数学找规律题及答案找规律是数学学习中一个重要的部分,它能帮助学生发展逻辑思维和解决问题的能力。

下面,我将展示一些初一数学找规律的问题,并附上相应的答案,以便帮助学生理解并解决类似的问题。

问题1:观察下列数字序列,找出规律,并预测下一个数字。

1,2,3,5,8,13,21,34,55,89...答案:这个数字序列是著名的斐波那契数列。

它的规律是每个数字是前两个数字的和。

因此,下一个数字应该是34 + 55 = 89。

问题2:观察下列图形序列,找出规律,并预测下一个图形。

图1:△图2:□△图3:△□□图4:□△□□图5:△□□□答案:这个图形序列的规律是每个图形都是由一个或多个三角形和一个正方形组成。

每个图形中的三角形数量比前一个图形多一个,而正方形数量与前一个图形相同。

因此,下一个图形应该是□△□□□。

问题3:观察下列等式序列,找出规律,并预测下一个等式。

a +b = cb +c = dc +d = ed +e = f答案:这个等式序列的规律是每个等式都是前两个等式的和。

初中数学计算题复习大全附答案【中考必备】

初中数学计算题复习大全附答案【中考必备】

..初中数学计算题大全(一)计算下列各题1 .36)21(60tan 1)2(100+-----π 2. 431417)539(524----3.)4(31)5.01(14-÷⨯+-- 4.5.++ 6.7112238. (1)03220113)21(++-- (2)23991012322⨯-⨯10.11.(1)- (2)÷(3)1---+42338-()232812564.0-⨯⨯⎪⎭⎫ ⎝⎛-÷⎪⎭⎫⎝⎛-+601651274312.418123+-13.⎛ ⎝14..x x x x 3)1246(÷- 15.61)2131()3(2÷-+-;16.20)21()25(2936318-+-+-+-17.(1))3127(12+- (2)()()6618332÷-+-18.()24335274158.0--+⎪⎭⎫ ⎝⎛+-⎪⎭⎫ ⎝⎛---1911()|2|4-- 20.())120131124π-⎛⎫---+ ⎪⎝⎭。

21.. 22.112812623-+23.2+参考答案1.解=1-|1-3|-2+23 =1+1-3-2+23 =3【解析】略2.5【解析】原式=14-9=53.87-【解析】解:)4(31)5.01(14-÷⨯+--⎪⎭⎫⎝⎛-⨯⨯--=4131231811+-=87-=先算乘方,再算乘除,最后算加减,有括号的先算括号里面的。

注意:41-底数是4,有小数又有分数时,一般都化成分数再进行计算。

4.==.【解析】略5.3 6.4【解析】主要考查实数的运算,考查基本知识和基本的计算能力,题目简单,但易出错,计算需细心。

1、+ +=232=3+-252=42⨯⨯ 722【解析】试题分析:先化简,再合并同类二次根式即可计算出结果.11223432223232332考点: 二次根式的运算.8.(1)32(2)9200 【解析】(1)原式=4+27+1 =32(2)原式=23(1012-992) (1分)=23(101+99)(101-99)(2分)=232200⨯⨯=9200 (1分) 利用幂的性质求值。

初中数学计算题(200道)

初中数学计算题(200道)

初中数学计算题(200道)(-1.5)×(-9)-12÷(-4)56÷(-7)-2÷5+0.43.57×29÷(-4)5.6÷(-2.8)-(-50)÷2[9.6+(-7.3)]×[(-5)-(-7)]12.3÷[5.6+(-1.2)](-75.6)÷(1/4+1/5)9.5×(-9.5)÷1/295.77÷(-2)+(-34.6)(-51.88)÷2-(-5)×241.25*(-3)+70*(-5)+5*(-3)+25 9999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 – 2/9 ×38× 5/4 + 1/46÷ 3/8 – 3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 – 14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 – 5/6 × 12/15 17/32 – 3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 – 1/5 × 21 50+160÷40120-144÷18+35347+45×2-4160÷5237×(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.958+370)÷(64-45)420+580-64×21÷28136+6×(65-345÷23)15-10.75×0.4-5.718.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×6+(1.5+2.5)÷1.60.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.576.(25%-695%-12%)*3677./4*3/5+3/4*2/578.1-1/4+8/9/7/979.+1/6/3/24+2/2180./15*3/581.3/4/9/10-1/682./3+1/2)/5/6-1/3]/1/783./5+3/5/2+3/484.(2-2/3/1/2)]*2/585.+5268.32-256986.3+456-52*887.5%+632588./2+1/3+1/489+456-785%+. 3/7 × 49/9 - 4/3 9 × 15/36 + 1/272× 5/6 – 2/9 ×33× 5/4 + 1/494÷ 3/8 – 3/8 ÷695/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8 × 5/6 + 5/61/4 × 8/9 - 1/310 × 5/49 + 3/141.5 ×( 1/2 + 2/3 )2/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/64/7 - ( 2/7 – 10/21 )19 × 18 – 14 × 2/75 × 25/16 + 2/3 × 3/4 4 × 8/7 – 5/6 × 12/15 7/32 – 3/4 × 9/242/3÷1/2-1/4×2/52-6/13÷9/26-2/32/9+1/2÷4/5+3/810÷5/9+1/6×41/2×2/5+9/10÷9/205/9×3/10+2/7÷2/51/2+1/4×4/5-1/83/4×5/7×4/3-1/223-8/9×1/27÷1/278×5/6+2/5÷41/2+3/4×5/12×4/58/9×3/4-3/8÷3/45/8÷5/4+3/23÷9/111.2×2.5+0.8×2.58.9×1.25-0.9×1.2512.5×7.4×0.89.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.40.25×8.6×46.72-3.28-1.720.45+6.37+4.555.4+6.9×3-(25-2.5)2×41846-620-3804.8×46+4.8×540.8+0.8×2.51.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2023.65-(3.07+3.65)(4+0.4×0.25)8×7×1.25 1.65×99+1.6527.85-(7.85+3.4)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78(1010+309+4+681+6)×123×9146×782×6×8545.15×7/8+6.1-0.606253/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 – 2/9 ×38× 5/4 + 1/46÷ 3/8 – 3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9. 9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 – 14 × 2/74/5 × 25/16 + 2/3 × 3/414 × 8/7 – 5/6 × 12/1517/32 – 3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 – 1/5 × 2150+160÷40 (58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 420+580-64×21÷28812-700÷(9+31×11)(136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 6-1.6÷45.38+7.85-5.377.2÷0.8-1.2×56-1.19×3-0.4347.6.5×(4.8-1.2×4)0.68×1.9+0.32×1.948.10.15-10.75×0.4-5.749.5.8×(3.87-0.13)+4.2×3.7450.32.52-(6+9.728÷3.2)×2.551.[(7.1-5.6)×0.9-1.15] ÷2.552.5.4÷[2.6×(3.7-2.9)+0.62]53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6102×(-4.5)-(-3)×(-5) ÷27.8×6.9+2.2×6.9(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)5.6×0.258×(20-1.25)(-7.1) ×〔(-3)×(-5)〕÷2-2.5×(-4.8)×(0.09)÷(-0.27) 127+352+73+44×(-2)89×276+(-135)-3325×71+75÷29 -88÷(-2)243+89+111+579405-2940÷28×21920-1680÷40÷7690+47×52-398148+3328÷64-75360×24÷32+7302100-94+48×5451+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷41×38-904264+318-8280÷69(174+209)×26- (9000^0)814-(278+322)÷151406+735×9÷453168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷361+5/6-19/123x(-9)+7x(-9)(-54)x1/6x(-1/3)1.18.1+(3-0.299÷0.23)×12.(6.8-6.8×0.55)÷8.53.0.12×4.8÷0.12×4.843.2×1.5+2.5÷(-1.6)(-2)×3.2×(1.5+2.5)÷1.6 5.6-1.6÷4+(6.8-9)5.38+7.85-5.37÷896.7.2÷0.8-1.2×56-1.19×3-0.437.6.5×(4.8-1.2×4)0.68×1.9+0.32×1.98.10.15-10.75×0.4-5.79.5.8×(3.87-0.13)(-8.01)+4.2×3.7410.32.52-(6+9.728÷3.2)×2.511.[(7.1-5.6)×0.9-1.15] ÷2.512.5.4÷[2.6×(3.7-2.9)+0.62]13.12×6÷(12-7.2)-614.12×6÷7.2-615.33.02-(148.4-90.85)÷2.5(-5)-252×(-78)(-6) ×(-2)+3÷(5+50)7-7+3-6-(-90)(-8)(-3)×(-8)×25(7+13) ÷(-616)÷(-28)(8+14-100-27)÷4(-15) ÷(-1)-101÷1016÷0.21×(-8) ×(4.1+5.9)(-10) ×(-2) ×4÷{-9÷[6+(-5.67)]}(-18)(-4)2×[8.01×(-3.14)9-32{-890-[79+8.1] ×9}(-20)-23+(-9) ×9.42(-24)3.4×104÷(-5) ×200.96[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1) +√92/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2) ×2^7(5+3/8*8/30/(-2)- √36(-84)/2*(-3)/(-6)1/2*(-4/15)/2/31+2+3+4+......+1000001/1+1/2+1/3+......1/501+1/2+1/4+1/8+1/16+......1/5123+9+27+81+243+ (9999)1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90 8-2×32-(-2×3)2–12 × (-3)2-(-1/2)2003×(-2)2002÷2/9 (0.5-3/2)÷3/1×[-2-(-3)3]-∣1/8-0.52∣[-38-(-1)7+(-3)8]×-53a^3-2b^3+ab(2a-b)-√a-b^215*(-8)+2b^2+(x^2+y^2)^2-4y(x^2+y^2)+4y^26-3a^8-(-5^2-6)(x^2+2x)^2+3(x^2+2x)+x^2+2x+3(a+1)(a+2)+(2a+1)(a-2)-12x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^23(a+2)^2+28(a+2)-20(a+b)^2-(b-c)^2+a^2-c^28x(x+1)(x^2+x-1)-2x^2(x-1)^2-3(x^2-x)-5614a(a-b)+(a-b)^211.-ab(a-b)^+a(b-a)^212.3(x+2)-2x=5-4x13.5(x+2a)-a=2(b-2x)+4a3.14*3.42 (2)972*3.14*1/4[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-√121-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(|-2|-5^4)(1/3+2/3)/1/2-|-9+(-5)|18-6/(-3)*(-2)-|-9|(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3|-3x+2y-5x-7y|-|-9x+2y| -5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3-√64-5^2 -2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2)(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3+√9-3x+2y-5x-7y+-5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2)(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3-3x+2y-5x-7y-(-3^2+5^7)-1+2-3+4-5+6-7+√9-50-28+(-24)-(-22)-19.8-(-20.3)-(+20.2)-10.8;0.25- +(-1 )-(+3 ).-1-23.33-(+76.76)1-2*2*2*2-5^2+(6^2-5^2) (-6-24.3)-(-12+9.1)+(0-2.1) -1+8-7+5^7-(-5+√9)125*3+125*5+25*3+259999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 × 49/9 - 4/38/9 × 15/36 + 1/2712x*5/6y–2/9y*|3x-2y|8×5/4+1/4*|-7-8|6÷ 3/8 – 3/8 ÷64/7 × 5/9 + 3/7 × 5/9 5/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 – 14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 – 5/6 × 12/15 17/32 – 3/4 × 9/243^45 × 2/9 + 1/35/7 × 3/25 + 3/73/14 ×2/3 + 1/61/5 × 2/3 + 5/65/3 × 11/5 + 4/39/22+1/11÷1/2-√16945^8 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101^4×(-1/5–1/5×21)50+√160÷40^5120-144÷18+35347+45×2-4160÷5237^2(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.958+370)÷(64-45)420+580-64×21÷28136+6×(65-345÷23)15-10.75×0.4-5.718.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×6+(1.5+2.5)÷1.60.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.5 76.(25%-695%-12%)*367/4*3/5+3/4*2/51-1/4+8/9/7/97+1/6/3/24+2/218/15*3/53/4/9/10-1/68/3+1/2)/5/6-1/3]/1/79/5+3/5/2+3/48^6(2-2/3/1/2)]*2/58+5268.32-25693+456-52*887.5%+63258/2+1/3+1/489+456-785%+. 3/7 × 49/9 - 4/3 9 × 15/36 + 1/272× 5/6 – 2/9 ×33× 5/4 + 1/494÷ 3/8 – 3/8 ÷695/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8 × 5/6 + 5/61/4 × 8/9 - 1/310× 5/49 + 3/142/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/64/7 - ( 2/7 – 10/21 )19 × 18 – 14 × 2/75 × 25/16 + 2/3 × 3/4 4 × 8/7 – 5/6 × 12/15 7/32 – 3/4 × 9/242/3÷1/2-1/4×2/52-6/13÷9/26-2/32/9+1/2÷4/5+3/810÷5/9+1/6×41/2×2/5+9/10÷9/205/9×3/10+2/7÷2/51/2+1/4×4/5-1/83/4×5/7×4/3-1/223-8/9×1/27÷1/2718×5/6+2/5÷411/2+3/4×5/12×4/58/9×3/4-3/8÷3/45/8÷5/4+3/23÷9/111.2×2.5+0.8×2.58.9×1.25-0.9×1.2512.5×7.4×0.86.5×9.5+6.5×0.50.35×1.6+0.35×3.40.25×8.6×46.72-3.28-1.720.45+6.37+4.555.4+6.9×3-(25-2.5)2×41846-620-3804.8×46+4.8×540.8+0.8×2.51.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2023.65-(3.07+3.65)(4+0.4×0.25)8×7×1.25 1.65×99+1.6527.85-(7.85+3.4)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78(1010+309+4+681+6)×123×9146×782×6×8545.15×7/8+6.1-0.606253/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 – 2/9 ×38× 5/4 + 1/46÷ 3/8 – 3/8 ÷64/7 × 5/9 + 3/7 × 5/9 5/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 – 14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 – 5/6 × 12/15 17/32 – 3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 – 1/5 × 2150+160÷40 (58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 420+580-64×21÷28812-700÷(9+31×11)(136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×(1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43=6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15] ÷2.55.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-6 (4)12×6÷7.2-6 102^2×4.5+8^5-√5297.8×6.9+2.2×6.95.6×0.258×(20-1.25)127+352+73+4489+276+135+3325+71+75+29 +88243+89+111+579405-2940÷28×21920-1680÷40÷7690+47×52-398148+3328÷64-75360×24÷32+7302100-94+48×5451+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷41×38-904264+318-8280÷69(174+209)×26- 9000814-(278+322)÷151406+735×9÷453168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷361+5/6-19/123x(-9)+7x(-9(-54)x1/6x(-1/3)18.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×(1.5+2.5)÷1.65.6-1.6÷45.38+7.85-5.377.2÷0.8-1.2×56-1.19×3-0.436.5×(4.8-1.2×4)0.68×1.9+0.32×1.9115-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.5二.解方程2x=7(x-5)8(3x+3)=2404.74+4x-2.5x=8.1(2.81+x)÷2.81=115x-30=16(x-2)(-3)^3-3^3(-1)^2-5.62^2+3^3-4^4(2^4-3^2)^3-5^5[(1.6^2-2^3)-2.1]^2(5.66×2)^2-15^2(-15)^x=225,x=?[(-4)^2-4^2]×2^2[(-5.6)^2+3]^2[5.6^2+(-5.6)^2]×(-1)^23x+28-x=561.5x+6=3.752(3.6x+2.8)=-1.69.5x+9.5=1918(x-35)=-36x+7-(-36+8^2)/2=8+7^4/3a-7-98+7a=3.2*5a89/2+35/6x=3*9+2^3/5+7x3X+189/3=521/24Y+119*^3=22/113X*189=5*4^5/38Z/6=458/53X+77=594Y-6985=8187X*13=57Z/93=4115X+863-65X=5458Y*55=274897(2x-1)-3(4x-1)=4(3x+2)-1(5y+1)+ (1-y)= (9y+1)+ (1-3y) [-6(-7^4*8)-4]=x+220%+(1-20%)(320-x)=320×40% 2(x-2)+2=x+12(x-2)-3(4x-1)=9(1-x)11x+64-2x=100-9x15-(8-5x)=7x+(4-3x)3(x-7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=22x+7^2=1571)判断题:判断下列方程是否是一元一次方程:①-3x-6x2=7( )③5x+1-2x=3x-2 ( )④3y-4=2y+1. ( )判断下列方程的解法是否正确:①解方程3y-4=y+3解:3y-y=3+4,2y=7,y=3.5②解方程:0.4x-3=0.1x+2解:0.4x+0.1x=2-3;0.5x=-1,x=-2③解方程解:5x+15-2x-2=10,3x=-3,x=-1;④解方程解:2x-4+5-5x=-1,-3x=-2,x= .( )2)填空题:(1)若2(3-a)x-4=5是关于x的一元一次方程,则a≠_ (2)关于x的方程ax=3的解是自然数,则整数a的值为_ (3)方程5x-2(x-1)=17 的解是_(4)x=2是方程2x-3=m- 的解,则m=_ .(5)若-2x2-5m+1=0 是关于x的一元一次方程,则m=_ . (6)当y=_ 时,代数式5y+6与3y-2互为相反数.(7)当m=_ 时,方程的解为0.(8)已知a≠0.则关于x的方程3ab-(a+b)x=(a-b)x的解为______ .3)选择题:(1)方程ax=b的解是().A.有一个解x= B.有无数个解C.没有解 D.当a≠0时,x=(2)解方程 ( x-1)=3,下列变形中,较简捷的是()A.方程两边都乘以4,得3( x-1)=12B.去括号,得x- =3C.两边同除以,得 x-1=4D.整理,得(3)方程2- 去分母得()A.2-2(2x-4)=-(x-7)B.12-2(2x-4)=-x-7C.12-2(2x-4)=-(x-7)D.以上答案均不对(4)若代数式比大1,则x的值是().A.13 B. C.8 D.(5)x=1.5是方程()的解.A.4x+2=2x-(-2-9)B.2{3[4(5x-1)-8]-2}=8C.4x+9 =6x+64)解答下列各题:(1)x等于什么数时,代数式的值相等?(2)y等于什么数时,代数式的值比代数式的值少3?(3)当m等于什么数时,代数式2m- 的值与代数式的值的和等于5?(4)解下列关于x的方程:①ax+b=bx+a;(a≠b);三.化简、化简求值化间求值:1、-9(x-2)-y(x-5)(1)化简整个式子。

初中精选数学计算题200道

初中精选数学计算题200道

计算题 c l1. 3 3 +(π+3)º-327 +∣ 3 -2∣2. 5x+2x ²+x =3x+13. 3-x x-4 +14-x =14. x ²-5x=05. x ²-x-1=06. 化简 239x +6x4-2x 1x7. 因式分解x 4-8x ²y ²+16y 48. 22x+1 +12x-1 =54x ²-19. 因式分解(2x+y )²-(x+2y) ² 10. 因式分解 -8a ²b+2a ³+8ab ² 11. 因式分解 a 4-1612. 因式分解 3ax ²-6axy+8ab ²13. 先化简,再带入求值(x+2)(x-1)-x ²-2x+1x-1 ,x= 3 14. ( - 3 )º-∣-3∣+(-1)2015+(12)-115. (1a-1 -1a ²-1 )÷a ²-aa ²-116. 2(a+1) ²+(a+1)(1-2a)17. (2x-1x+1 -x+1) ÷x-2x ²+2x+118. (-3-1) ×(- 32 )²-2-1÷(- 12 )³19. 12x-1 =243-21 x20. (x+1) ²-(x+2)(x-2) 21. sin60°-∣1- 3 ∣+(12 )-122.(-5)16×(-2)15(结果以幂的形式表示)23. 若n 为正整数且(m n)²=9,求(13 m 3n )³(m ²)2n24. 因式分解a ²+ac-ab-bc 25. 因式分解x ²-5x+6 26. 因式分解(x+2)(x+3)+x ²-4 27. 因式分解(a ²+1) ²-4a ² 28. -12016+18÷ (-3) ×∣-12∣29. 先化简,再求值3(x ²+xy-1)-(3x ²-2xy),其中x=1,y= - 1530. 计算3-4+5-(-6)-731. 计算-1²+(-4) ²×∣-18 ∣-8²÷(-4) ³32.计算 20-(-7)-∣-2∣33.计算(13 - 59 +1112 )×(-36)34.计算(-1)²- 14×[2- (-3) ²]35. 解二元一次方程组 x-2y=1 ① x+3y=6 ②36. 解二元一次方程组 2(x-y)3 - x+y 4 = - 112 ①5y-x=3 ②37. 解二元一次方程组 x+2y=6 ① 3x-2y=2 ② 38. 解不等式 3(x-1)>2x+239. 解不等式 3x+13 - 7x-35 ≤ 2+2(x-2)1540. 化简a(a-1) ²-(a+1)(a ²-a+1) 41. (a a-b +b b-a ) ÷1a+b42. 当m=1 5-2 ,求代数式m+1m43. (12)-1- ( 2 -1)º+∣-3∣+tan45º-cos60ºcos30º·tan60°44. 先化简再求值 x ²-5x+63x ²-3x ·(1-3x+1 )·(1+2x-3 ),其中x= 345. 先化简再求值 x-yy ²-x ² ,其中x=-1,y=246. 解方程x ²-3x=047. 6-(-2)² ·2-1+()º+3-8 +cos ²45° 48. 计算( 3 )²+4×(- 12)-2³49. 先化简,再求值(a+b )(a-b)+b(b-2),其中a= 2 ,b=-1 50. 计算 4 -(1 5+2 )º+(-2) ³÷3-151. 计算12-1 - 3tan ²30°+2(sin45°-1)²52. 化简[a a-b +b ²a(b-a) ]÷a+bab53. 计算- 2²+ º+3sin30°54. 计算(13 )-1+(2006-π)º - 3 tan60°55. 计算2013-(π)º+∣-3∣+(-1) 56.57. 计算:﹣.58. 计算:.59. 计算:. 60. 计算:.61. 计算:.62. (a ﹣2)2+4(a ﹣1)﹣(a+2)(a ﹣2) 63. (﹣1)2013﹣|﹣7|+×+()﹣1;64. .65. 计算:.66. 解方程:.67. 计算:.68. 解方程:=﹣. 69. 求不等式组的整数解. 70. 先化简,再求值:(﹣)÷,其中x=+1.71. 解方程:72.73. 先化简,再求值:÷+,其中x=2+1.74. 解方程:.75. 计算:.76. 计算:(1+)2013﹣2(1+)2012﹣4(1+)2011.77. 计算:.78. 011821()2π--+ .79. 解方程组: 22220x y x xy y -=-⎧⎨--=⎩.80. 计算:(﹣1)3+(+1)0+. 81. 解不等式组:. 82. 先化简,再求值:÷(x+1﹣),其中x=﹣2.83. ∣-5∣+2²-( 3 +1)º 84. 2×(-5)+23-3÷1285. 22+(-1)4+(5-2)0-|-3| 86. ()()0332011422---+÷-87. a a ²-b ² -a a-b ÷bb-a88. 2x x ²-4 - 1x-289. (a+b )2+b (a ﹣b ). 90. (a - 1a )÷a-1a91. 2111x x x -⎛⎫+÷ ⎪⎝⎭92. ⎝ ⎛⎭⎪⎪⎫1+ 1 x -2÷ x 2-2x +1 x 2-4,其中x =-5.93. (a ﹣1+)÷(a 2+1),其中a=﹣1.94. 2121(1)1a a a a++-⋅+,其中a 2-1.95.)252(423--+÷--a a a a , 1-=a96. 化简求值: 111(11222+---÷-+-m m m m m m ),其中m =3.97. 化简2111x x x -⎛⎫+÷ ⎪⎝⎭98. 化简:xx x x x x x x x 416)44122(2222+-÷+----+, 其中22+=x 99. 化简并求值:221122a b a b a a b a -⎛⎫--+ ⎪-⎝⎭,其中33a b =-=-.100. 计算:332141222+-+÷⎪⎭⎫ ⎝⎛---+a a a a a a a .101. 先化简,再求值:13x -·32269122x x x x x x x-+----,其中x =-6.102.先化简再求值:⎝ ⎛⎭⎪⎪⎫1-1a -1÷a 2-4a +4a 2-a ,其中a =2+ 2 .103. 先化简,再求值:a -1a +2·a 2+2a a 2-2a +1÷1a 2-1,其中a 为整数且-3<a <2.104. 先化简,再求值:222211yxy x x y x y x ++÷⎪⎪⎭⎫⎝⎛++-,其中1=x ,2-=y .105. 先化简,再求值:2222(2)42x x x x x x -÷++-+,其中12x =. 106.先化简,再求值222112()2442x x x x x x-÷--+-,其中2x =107.22221(1)121a a a a a a +-÷+---+.108.先化简再求值:1112421222-÷+--•+-a a a a a a ,其中a 满足20a a -=.109. 先化简:144)113(2++-÷+-+a a a a a ,并从0,1-,2中选一个合适的数作为a 的值代入求值。

初中数学计算题200道3篇

初中数学计算题200道3篇

初中数学计算题200道第一篇:整数运算1. 正整数 $3$ 与 $5$ 分别乘以 $4$,他们的积之和是多少?2. 若 $a=7,b=2$,则 $ab+a+b$ 的值是多少?3. 计算:$14\times 17 + 7\times 17 - 5\times 14$。

4. 用长除法计算 $253 \div 7$,并将余数化为分数形式。

5. $-33$ 与 $16$ 的积再除以 $(-4)$,所得的商是多少?6. 若 $a+b=5,a-b=3$,则 $a$ 和 $b$ 的值分别是多少?7. 将 $-47$ 和 $32$ 相加再减去 $(-5)$,所得的结果是多少?8. 若 $x+2=7$,则 $x$ 的值是多少?9. 已知 $a \times b = 56,a \times c = 45$,则 $b$ 与$c$ 的商是多少?10. 计算:$(-6)\div (-2)\times (-3) + 2\div (-1)$。

第二篇:分数运算1. 计算:$\dfrac{2}{3}+\dfrac{1}{6}$。

2. 计算:$\dfrac{3}{4}-\dfrac{1}{6}$。

3. 将 $\dfrac{3}{5}$ 与 $\dfrac{2}{3}$ 相加并化简结果。

4. 计算:$\dfrac{1}{2}\times\dfrac{3}{4}$。

5. 计算:$1\dfrac{1}{2}\div\dfrac{2}{3}$。

6. $\dfrac{1}{3}$ 的 $5$ 倍与 $\dfrac{1}{4}$ 的 $3$ 倍的和是多少?7. 化简:$\dfrac{3}{4}\div \dfrac{2}{5}$。

8. $\dfrac{1}{6}$ 的 $2$ 倍与 $\dfrac{1}{2}$ 的和减去$\dfrac{1}{3}$ 的 $2$ 倍,所得结果是多少?9. 计算:$\dfrac{5}{6}\times\dfrac{8}{15}$。

初中精选数学计算题200道

初中精选数学计算题200道

范文范例学习指导计算题c l3 31.+ (π +3)o - 27 + ∣ 3 -2 ∣35x+2 32.x2 +x = x+13-x13.x-4 + 4-x =14.x 2 -5x=05.x 2 -x-1=02 x 16.化简39x +6 4 -2x x7.因式分解 x4-8x 2 y2 +16y42 1 58.2x+1 + 2x-1 = 4x2 -19.因式分解( 2x+y) 2 -(x+2y) 210.因式分解 -8a 2 b+2a3 +8ab211.因式分解 a 4-1612.因式分解 3ax 2 -6axy+8ab 213.先化简,再带入求值(x+2) (x-1)- x2 -2x+1,x= 3 x-1114. ( - 3 ) o - ∣ -3 ∣ +(-1) 2015+( 2 )-11 1 a2 -a15. ( a-1 - a2 -1 )÷ a2-116. 2(a+1) 2 +(a+1)(1-2a)word 完美整理版范文范例学习指导17. ( 2x-1-x+1) ÷ x2x-2x+1 +2x+13-1 118. (-3-1) × (-2 ) 2 -2 ÷(- 2) 319.11 - 3=2 2x-1 2 4 x20. (x+1) 2 -(x+2)(x-2)1 -121. sin60 ° - ∣ 1- 3 ∣+(2)22.( -5 )16× (-2)15 ( 结果以幂的形式表示)n 13n2n23. 若 n 为正整数且( m ) 2 =9, 求(3 m ) 3 (m2 )24. 因式分解 a2 +ac-ab-bc25. 因式分解 x2 -5x+626. 因式分解 (x+2)(x+3)+x 2 -427. 因式分解 (a 2 +1) 2 -4a 2-1 2016+18÷ (-3) 128. ×∣-2∣29. 先化简,再求值3(x 2 +xy-1)-(3x 2 -2xy), 其中 x=1,y= -1530. 计算 3-4+5-(-6)-7131. 计算-12 +(-4) 2 ×∣-8∣-8 2 ÷ (-4) 332. 计算 20- (-7 )- ∣-2 ∣word 完美整理版范文范例 学习指导1 5 11 33.计算( 3 -9 + 12 )× (-36)34. 计算( -1 )2 - 1× [2- (-3)2 ]435. 解二元一次方程组x-2y=1 ① x+3y=6②2(x-y)x+y 36.解二元一次方程组3-4= -5y-x=3②37. 解二元一次方程组 x+2y=6 ①3x-2y=2②38.解不等式 3 ( x-1 )> 2x+239.3x+17x-3 2(x-2)解不等式 3 - 5 ≤ 2+1540. 化简 a(a-1)2 -(a+1)(a 2 -a+1)ab141. ( a-b +b-a )÷a+b 42. 当 m= 11 5-2 , 求代数式 m+m43.1 -1-2 -1 ) o( 2 ) (112 ①+ ∣-3 ∣word 完美整理版tan45 o -cos60 o· tan60 °+cos30ox2 -5x+6 3 2 44. 先化简再求值3x2 -3x · (1- x+1 ) · (1+ x-3 ), 其中x= 3x-y45. 先化简再求值y2 -x 2 ,其中 x=-1 , y=246. 解方程 x2 -3x=047. 6- (-2) 23· 2-1 +( -3.14 ) o + -8 +cos 2 45°48. 计算( 3 )2 +4×( - 1)-23 249.先化简,再求值( a+b)(a-b)+b(b-2), 其中 a= 2 ,b=-150.计算 4-(1)o +(-2) 3 ÷ 3-15+2151.计算- 3tan 2 30°+2 (sin45 °-1) 2 2-1a b2 a+b52.化简 [ a-b+ a(b-a) ] ÷ab53.计算 - 2 2 +(3-3.14) o +3sin30 °154.计算(3)-1 +( 2006- π) o -3 tan60 °55.计算 2013- (π -3.14 ) o +∣ -3 ∣ +( -1 )56.57.计算:﹣.58.计算:.word 完美整理版59.计算:.60.计算:.61.计算:.62.( a﹣ 2)2+4( a﹣1)﹣( a+2)( a﹣2)63.(﹣ 1)2013﹣| ﹣ 7|+×0+()﹣1;64..65.计算:.66.解方程:.67.计算:.68.解方程:= ﹣.69.求不等式组的整数解.70. 先化简,再求值:(﹣)÷,其中 x= +1.71.解方程:72.73.先化简,再求值:÷+ ,其中 x=2 +1.74.解方程:.75.计算:.76.计算:( 1+ )2013﹣ 2( 1+ )2012﹣ 4(1+ )2011.77.计算:.78.计算:8 2 1 0 (1) 1 .2word 完美整理版范文范例学习指导79. 解方程组:x y 2.x2xy 2 y2080.计算:(﹣ 1)3+( +1)0+ .81. 解不等式组:.82. 先化简,再求值:÷( x+1﹣),其中 x= ﹣ 2.83. ∣ -5 ∣ +22 -( 3 +1) o84.2×( - 5) +23- 3÷1 285.22+ ( - 1) 4+(5-2) 0-| - 3|86.3 0 32011 4 22a a b87.a2 -b 2 - a-b ÷ b-a2x 188.x2 -4 - x-289.( a+b)2+b( a﹣ b).1 a-190. (a - a )÷ a91.1 x2 1 1xx92. 1+1 2-2x+ 1x- 2÷ x 2 ,其中 x=- 5.x - 493.( a﹣ 1+ )÷( a2+1),其中 a= ﹣ 1.94. (1 1 ) a22a 1,其中 a = 2 -1.a 1 aword 完美整理版范文范例 学习指导95. 3 a (a 2 5) , a 12a4a 296. 化简求值: m 22m 1 (m 1 m1) , 其中= 3 .m 2 1 m1m97. 化简 1 1 x 21xx98. 化简:( x 2 x 1) x 216, 其中 x 22x 22xx 24x 4 x 24x 99.化简并求值: 1 1 b a b a 2 b 2,其中2a a 2aa 3 2 2,b 3 2 3 .100. 计算: a 14a 22a 3.a 2a a 21a 3101. 先化简,再求值:1·x 36x 29x 1 x,其中 x =- 6.x 3 x 22x 2 x1a 2- 4a + 4102. 先化简再求值: 1- a - 1 ÷ a 2- a ,其中 a = 2+ 2 .- 1 2+ 2 a 1 103. 先化简,再求值:a a+2· 2-2 +1÷ 2- 1,其中 a 为aaaa整数且- 3< a < 2.104.先化简,再求值:112 x,其中 x 1 ,x y x y x 22xy y 2y2 . 105. 先化简,再求值:x 22x 2x( x 2) ,其中 x 1 . x 2 4 x 2 2 106.先化简,再求值 ( 11)2,其中 x 22x x 24x 4x 2x 22x 107. 2a 2 (a 1) a 2a 21.a1 2a 1word 完美整理版范文范例 学习指导108. 先化简再求值:a 1 a 2 a 24 1 a 2 1 ,其中 a 满足a 2 2a 1 a 2a 0 .109. 先化简: ( 3a1) a 24a 4,并从 0, 1,2 中选一a 1a 1个合适的数作为a 的值代入求值。

初中数学计算题(200道)

初中数学计算题(200道)

初中数学计算题(200道)(-1.5)×(-9)-12÷(-4)56÷(-7)-2÷5+0.43.57×29÷(-4)5.6÷(-2.8)-(-50)÷2[9.6+(-7.3)]×[(-5)-(-7)]12.3÷[5.6+(-1.2)](-75.6)÷(1/4+1/5)9.5×(-9.5)÷1/295.77÷(-2)+(-34.6)(-51.88)÷2-(-5)×241.25*(-3)+70*(-5)+5*(-3)+25 9999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 –2/9 ×38× 5/4 + 1/46÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 –5/6 × 12/15 17/32 –3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 –1/5 × 21 50+160÷40120-144÷18+35347+45×2-4160÷5237×(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.958+370)÷(64-45)420+580-64×21÷28136+6×(65-345÷23)15-10.75×0.4-5.718.1+(3-0.299÷0.23)×1 (6.8- 6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×6+(1.5+2.5)÷1.60.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.576.(25%-695%-12%)*3677./4*3/5+3/4*2/578.1-1/4+8/9/7/979.+1/6/3/24+2/2180./15*3/581.3/4/9/10-1/682./3+1/2)/5/6-1/3]/1/783./5+3/5/2+3/484.(2-2/3/1/2)]*2/585.+5268.32-256986.3+456-52*887.5%+632588./2+1/3+1/489+456-785%+. 3/7 × 49/9 - 4/39 × 15/36 + 1/272× 5/6 –2/9 ×33× 5/4 + 1/494÷ 3/8 –3/8 ÷695/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8 × 5/6 + 5/61/4 × 8/9 - 1/310 × 5/49 + 3/141.5 ×( 1/2 + 2/3 )2/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/64/7 - ( 2/7 – 10/21 )19 × 18 –14 × 2/75 × 25/16 + 2/3 × 3/4 4 × 8/7 –5/6 × 12/15 7/32 –3/4 × 9/242/3÷1/2-1/4×2/52-6/13÷9/26-2/32/9+1/2÷4/5+3/810÷5/9+1/6×41/2×2/5+9/10÷9/205/9×3/10+2/7÷2/51/2+1/4×4/5-1/83/4×5/7×4/3-1/223-8/9×1/27÷1/278×5/6+2/5÷41/2+3/4×5/12×4/58/9×3/4-3/8÷3/45/8÷5/4+3/23÷9/111.2×2.5+0.8×2.58.9×1.25-0.9×1.2512.5×7.4×0.89.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.40.25×8.6×46.72-3.28-1.720.45+6.37+4.555.4+6.9×3-(25-2.5)2×41846-620-3804.8×46+4.8×540.8+0.8×2.51.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2023.65-(3.07+3.65)(4+0.4×0.25)8×7×1.25 1.65×99+1.6527.85-(7.85+3.4)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78(1010+309+4+681+6)×123×9146×782×6×8545.15×7/8+6.1-0.606253/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 –2/9 ×38× 5/4 + 1/46÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9. 9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/414 × 8/7 –5/6 × 12/1517/32 –3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 –1/5 × 2150+160÷40 (58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 420+580-64×21÷28812-700÷(9+31×11)(136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8- 6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 6-1.6÷45.38+7.85-5.377.2÷0.8-1.2×56-1.19×3-0.4347.6.5×(4.8-1.2×4)0.68×1.9+0.32×1.948.10.15-10.75×0.4-5.749.5.8×(3.87-0.13)+4.2×3.7450.32.52-(6+9.728÷3.2)×2.551.[(7.1-5.6)×0.9-1.15] ÷2.552.5.4÷[2.6×(3.7-2.9)+0.62]53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6102×(-4.5)-(-3)×(-5) ÷27.8×6.9+2.2×6.9(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)5.6×0.258×(20-1.25)(-7.1) ×〔(-3)×(-5)〕÷2 -2.5×(-4.8)×(0.09)÷(-0.27) 127+352+73+44×(-2)89×276+(-135)-3325×71+75÷29 -88÷(-2)243+89+111+579405-2940÷28×21920-1680÷40÷7690+47×52-398148+3328÷64-75360×24÷32+7302100-94+48×5451+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷41×38-904264+318-8280÷69(174+209)×26- (9000^0)814-(278+322)÷151406+735×9÷453168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷361+5/6-19/123x(-9)+7x(-9)(-54)x1/6x(-1/3)1.18.1+(3-0.299÷0.23)×12.(6.8- 6.8×0.55)÷8.53.0.12×4.8÷0.12×4.843.2×1.5+2.5÷(-1.6)(-2)×3.2×(1.5+2.5)÷1.6 5.6-1.6÷4+(6.8-9)5.38+7.85- 5.37÷896.7.2÷0.8-1.2×56-1.19×3-0.437.6.5×(4.8-1.2×4)0.68×1.9+0.32×1.98.10.15-10.75×0.4-5.79.5.8×(3.87-0.13)(-8.01)+4.2×3.7410.32.52-(6+9.728÷3.2)×2.511.[(7.1-5.6)×0.9-1.15] ÷2.512.5.4÷[2.6×(3.7-2.9)+0.62]13.12×6÷(12-7.2)-614.12×6÷7.2-615.33.02-(148.4-90.85)÷2.5 (-5)-252×(-78)(-6) ×(-2)+3÷(5+50)7-7+3-6-(-90)(-8)(-3)×(-8)×25(7+13) ÷(-616)÷(-28)(8+14-100-27)÷4(-15) ÷(-1)-101÷1016÷0.21×(-8) ×(4.1+5.9)(-10) ×(-2) ×4÷{-9÷[6+(-5.67)]} (-18)(-4)2×[8.01×(-3.14)9-32{-890-[79+8.1] ×9}(-20)-23+(-9) ×9.42(-24)3.4×104÷(-5) ×200.96[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1) +√92/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2) ×2^7(5+3/8*8/30/(-2)- √36(-84)/2*(-3)/(-6)1/2*(-4/15)/2/31+2+3+4+......+1000001/1+1/2+1/3+......1/501+1/2+1/4+1/8+1/16+......1/5123+9+27+81+243+ (9999)1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90 8-2×32-(-2×3)2–12 × (-3)2-(-1/2)2003×(-2)2002÷2/9 (0.5-3/2)÷3/1×[-2-(-3)3]-∣1/8-0.52∣[-38-(-1)7+(-3)8]×-53a^3-2b^3+ab(2a-b)-√a-b^215*(-8)+2b^2+(x^2+y^2)^2-4y(x^2+y^2)+4y^26-3a^8-(-5^2-6)(x^2+2x)^2+3(x^2+2x)+x^2+2x+3(a+1)(a+2)+(2a+1)(a-2)-12x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^23(a+2)^2+28(a+2)-20(a+b)^2-(b-c)^2+a^2-c^28x(x+1)(x^2+x-1)-2x^2(x-1)^2-3(x^2-x)-5614a(a-b)+(a-b)^211.-ab(a-b)^+a(b-a)^212.3(x+2)-2x=5-4x13.5(x+2a)-a=2(b-2x)+4a3.14*3.42 (2)972*3.14*1/4[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-√121-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(|-2|-5^4)(1/3+2/3)/1/2-|-9+(-5)|18-6/(-3)*(-2)-|-9|(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3|-3x+2y-5x-7y|-|-9x+2y|-5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-√64-5^2 -2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2)(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3+√9-3x+2y-5x-7y+-5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2)(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3-3x+2y-5x-7y-(-3^2+5^7) -1+2-3+4-5+6-7+√9-50-28+(-24)-(-22)-19.8-(-20.3)-(+20.2)-10.8;0.25- +(-1 )-(+3 ).-1-23.33-(+76.76)1-2*2*2*2-5^2+(6^2-5^2) (-6-24.3)-(-12+9.1)+(0-2.1) -1+8-7+5^7-(-5+√9) 125*3+125*5+25*3+25 9999*3+101*11*(101-92) (23/4-3/4)*(3*6+2)3/7 × 49/9 - 4/38/9 × 15/36 + 1/2712x*5/6y–2/9y*|3x-2y|8×5/4+1/4*|-7-8|6÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 –5/6 × 12/15 17/32 –3/4 × 9/243^45 × 2/9 + 1/35/7 × 3/25 + 3/73/14 ×2/3 + 1/61/5 × 2/3 + 5/65/3 × 11/5 + 4/39/22+1/11÷1/2-√16945^8 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101^4×(-1/5–1/5×21)50+√160÷40^5120-144÷18+35347+45×2-4160÷5237^2(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)120-36×4÷18+35(58+37)÷(64-9×5)(6.8- 6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.958+370)÷(64-45)420+580-64×21÷28136+6×(65-345÷23)15-10.75×0.4-5.718.1+(3-0.299÷0.23)×1 (6.8- 6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×6+(1.5+2.5)÷1.60.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.5 76.(25%-695%-12%)*367/4*3/5+3/4*2/51-1/4+8/9/7/97+1/6/3/24+2/218/15*3/53/4/9/10-1/68/3+1/2)/5/6-1/3]/1/79/5+3/5/2+3/48^6(2-2/3/1/2)]*2/58+5268.32-25693+456-52*887.5%+63258/2+1/3+1/489+456-785%+. 3/7 × 49/9 - 4/3 9 × 15/36 + 1/272× 5/6 –2/9 ×33× 5/4 + 1/494÷ 3/8 –3/8 ÷695/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8 × 5/6 + 5/61/4 × 8/9 - 1/310× 5/49 + 3/141.5 ×( 1/2 + 2/3 )2/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/64/7 - ( 2/7 – 10/21 )19 × 18 –14 × 2/75 × 25/16 + 2/3 × 3/4 4 × 8/7 –5/6 × 12/15 7/32 –3/4 × 9/242/3÷1/2-1/4×2/52-6/13÷9/26-2/32/9+1/2÷4/5+3/810÷5/9+1/6×41/2×2/5+9/10÷9/205/9×3/10+2/7÷2/51/2+1/4×4/5-1/83/4×5/7×4/3-1/223-8/9×1/27÷1/2718×5/6+2/5÷411/2+3/4×5/12×4/58/9×3/4-3/8÷3/45/8÷5/4+3/23÷9/11 1.2×2.5+0.8×2.58.9×1.25-0.9×1.2512.5×7.4×0.89.9×6.4-(2.5+0.24)6.5×9.5+6.5×0.50.35×1.6+0.35×3.40.25×8.6×46.72-3.28-1.720.45+6.37+4.555.4+6.9×3-(25-2.5)2×41846-620-3804.8×46+4.8×540.8+0.8×2.51.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2023.65-(3.07+3.65)(4+0.4×0.25)8×7×1.25 1.65×99+1.6527.85-(7.85+3.4)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78(1010+309+4+681+6)×123×9146×782×6×8545.15×7/8+6.1-0.606253/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 –2/9 ×38× 5/4 + 1/46÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 –5/6 × 12/15 17/32 –3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 –1/5 × 2150+160÷40 (58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 420+580-64×21÷28812-700÷(9+31×11)(136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8- 6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×(1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43=6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15] ÷2.55.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-6 (4)12×6÷7.2-6 102^2×4.5+8^5-√5297.8×6.9+2.2×6.95.6×0.258×(20-1.25)127+352+73+4489+276+135+3325+71+75+29 +88243+89+111+579405-2940÷28×21920-1680÷40÷7690+47×52-398148+3328÷64-75360×24÷32+7302100-94+48×5451+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷41×38-904264+318-8280÷69(174+209)×26- 9000814-(278+322)÷151406+735×9÷453168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷361+5/6-19/123x(-9)+7x(-9(-54)x1/6x(-1/3)18.1+(3-0.299÷0.23)×1 (6.8- 6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×(1.5+2.5)÷1.65.6-1.6÷45.38+7.85-5.377.2÷0.8-1.2×56-1.19×3-0.436.5×(4.8-1.2×4)0.68×1.9+0.32×1.9115-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.5二.解方程2x=7(x-5)8(3x+3)=2404.74+4x-2.5x=8.1(2.81+x)÷2.81=115x-30=16(x-2)(-3)^3-3^3(-1)^2-5.62^2+3^3-4^4(2^4-3^2)^3-5^5[(1.6^2-2^3)-2.1]^2(5.66×2)^2-15^2(-15)^x=225,x=?[(-4)^2-4^2]×2^2[(-5.6)^2+3]^2[5.6^2+(- 5.6)^2]×(-1)^23x+28-x=561.5x+6=3.752(3.6x+2.8)=-1.69.5x+9.5=1918(x-35)=-36x+7-(-36+8^2)/2=8+7^4/3a-7-98+7a=3.2*5a89/2+35/6x=3*9+2^3/5+7x3X+189/3=521/24Y+119*^3=22/113X*189=5*4^5/38Z/6=458/53X+77=594Y-6985=8187X*13=57Z/93=4115X+863-65X=5458Y*55=274897(2x-1)-3(4x-1)=4(3x+2)-1(5y+1)+ (1-y)= (9y+1)+ (1-3y) [-6(-7^4*8)-4]=x+220%+(1-20%)(320-x)=320×40% 2(x-2)+2=x+12(x-2)-3(4x-1)=9(1-x)11x+64-2x=100-9x15-(8-5x)=7x+(4-3x)3(x-7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=22x+7^2=1571)判断题:判断下列方程是否是一元一次方程:①-3x-6x2=7( )③5x+1-2x=3x-2 ( )④3y-4=2y+1. ( )判断下列方程的解法是否正确:①解方程3y-4=y+3解:3y-y=3+4,2y=7,y=3.5②解方程:0.4x-3=0.1x+2解:0.4x+0.1x=2-3;0.5x=-1,x=-2③解方程解:5x+15-2x-2=10,3x=-3,x=-1;④解方程解:2x-4+5-5x=-1,-3x=-2,x= .( )2)填空题:(1)若2(3-a)x-4=5是关于x的一元一次方程,则a≠_ (2)关于x的方程ax=3的解是自然数,则整数a的值为_ (3)方程5x-2(x-1)=17 的解是_(4)x=2是方程2x-3=m- 的解,则m=_ .(5)若-2x2-5m+1=0 是关于x的一元一次方程,则m=_ . (6)当y=_ 时,代数式5y+6与3y-2互为相反数.(7)当m=_ 时,方程的解为0.(8)已知a≠0.则关于x的方程3ab-(a+b)x=(a-b)x的解为______ .3)选择题:(1)方程ax=b的解是().A.有一个解x= B.有无数个解C.没有解 D.当a≠0时,x=(2)解方程 ( x-1)=3,下列变形中,较简捷的是()A.方程两边都乘以4,得3( x-1)=12B.去括号,得x- =3C.两边同除以,得 x-1=4D.整理,得(3)方程2- 去分母得()A.2-2(2x-4)=-(x-7)B.12-2(2x-4)=-x-7C.12-2(2x-4)=-(x-7)D.以上答案均不对(4)若代数式比大1,则x的值是().A.13 B. C.8 D.(5)x=1.5是方程()的解.A.4x+2=2x-(-2-9)B.2{3[4(5x-1)-8]-2}=8C.4x+9 =6x+64)解答下列各题:(1)x等于什么数时,代数式的值相等?(2)y等于什么数时,代数式的值比代数式的值少3?(3)当m等于什么数时,代数式2m- 的值与代数式的值的和等于5?(4)解下列关于x的方程:①ax+b=bx+a;(a≠b);三.化简、化简求值化间求值:1、-9(x-2)-y(x-5)(1)化简整个式子。

初中数学计算题(200道)

初中数学计算题(200道)

初中数学计算题(200道) 实用文档1.5乘以-9减去12除以-456除以-7减去2除以5加0.43.57乘以29除以-45.6除以-2.8减去-50除以29.6减去7.3)乘以(-5减去-7)12.3除以(5.6减去1.2)75.6除以(1/4加1/5)9.5乘以-9.5除以1/295.77除以-2减去-34.651.88除以2减去-5乘以241.25乘以-3加70乘以-5加5乘以-3加25 9999乘以3加101乘以11乘以(101减去92) 23/4减去3/4)乘以(3乘以6加2)3/7乘以49/9减4/38/9乘以15/36加1/2712乘以5/6减2/9乘以38乘以5/4加1/46除以3/8减去3/8除以64/7乘以5/9加3/7乘以5/9 5/2减去(3/2加4/5)7/8加(1/8加1/9)9乘以5/6加5/63/4乘以8/9减1/37乘以5/49加3/146乘以(1/2加2/3)8乘以4/5加8乘以11/5 31乘以5/6减5/69/7减去(2/7减去10/21)5/9乘以18减14乘以2/74/5乘以25/16加2/3乘以3/4 14乘以8/7减5/6乘以12/15 17/32减去3/4乘以9/243乘以2/9加1/35/7乘以3/25加3/73/14乘以2/3加1/61/5乘以2/3加5/69/22加1/11除以1/25/3乘以11/5加4/345乘以2/3加1/3乘以157/19加12/19乘以5/61/4加3/4除以2/38/7乘以21/16加1/2101乘以1/5减1/5乘以2150加160除以40120减144除以18加35347加45乘以2减4160除以5237乘以(58加37)除以(64减去9乘以5)已做95除以(64减去45)178减去145除以5乘以6加42812减去700除以(9加31乘以11) 85加14乘以(14加208除以26) 120减去36乘以4除以18加35 58加37)除以(64减去9乘以5) 6.8减去6.8乘以0.55)除以8.5标准文案实用文档1.5乘以-9减去12除以-456除以-7减去2除以5加0.43.57乘以29除以-45.6除以-2.8减去-50除以29.6减去7.3)乘以(-5减去-7)12.3除以(5.6减去1.2)75.6除以(1/4加1/5)9.5乘以-9.5除以1/295.77除以-2减去-34.651.88除以2减去-5乘以241.25乘以-3加70乘以-5加5乘以-3加25 9999乘以3加101乘以11乘以(101减去92) 23/4减去3/4)乘以(3乘以6加2)3/7乘以49/9减4/38/9乘以15/36加1/2712乘以5/6减2/9乘以3 8乘以5/4加1/46除以3/8减去3/8除以6 4/7乘以5/9加3/7乘以5/9 5/2减去(3/2加4/5)7/8加(1/8加1/9)9乘以5/6加5/63/4乘以8/9减1/37乘以5/49加3/146乘以(1/2加2/3)8乘以4/5加8乘以11/531乘以5/6减5/69/7减去(2/7减去10/21)5/9乘以18减14乘以2/74/5乘以25/16加2/3乘以3/4 14乘以8/7减5/6乘以12/15 17/32减去3/4乘以9/243乘以2/9加1/35/7乘以3/25加3/73/14乘以2/3加1/61/5乘以2/3加5/69/22加1/11除以1/25/3乘以11/5加4/345乘以2/3加1/3乘以15 7/19加12/19乘以5/61/4加3/4除以2/38/7乘以21/16加1/2101乘以1/5减1/5乘以2150加160除以40120减144除以18加35347加45乘以2减4160除以5237乘以(58加37)除以(64减去9乘以5)已做95除以(64减去45)178减去145除以5乘以6加42812减去700除以(9加31乘以11)85加14乘以(14加208除以26)120减去36乘以4除以18加3558加37)除以(64减去9乘以5)6.8减去6.8乘以0.55)除以8.5标准文案18.1 + (3 - 0.299 ÷ 0.23) × 1 6.8 - 6.8 × 0.55) ÷ 8.50.12 × 4.8 ÷ 0.12 × 4.83.2 × 6 + (1.5 + 2.5) ÷ 1.60.68 × 1.9 + 0.32 × 1.910.15 - 10.75 × 0.4 - 5.75.8 × (3.87 - 0.13) + 4.2 × 3.74 32.52 - (6 + 9.728 ÷ 3.2) × 2.5 7.1 - 5.6) × 0.9 - 1.15] ÷ 2.5 5.4 ÷ [2.6 × (3.7 - 2.9) + 0.62] 12 × 6 ÷ (12 - 7.2) - 612 × 6 ÷ 7.2 - 633.02 - (148.4 - 90.85) ÷ 2.576.25% - 695% - 12%) × 3677 ÷ 4 × 3 ÷ 5 + 3 ÷ 4 × 2 ÷ 5 81/36 + 2/211/10 × 9/53/4 ÷ 9/10 - 1/61/3 + 1/2) ÷ 5/6 - 1/3 ÷ 1/7 3/5 + 3/10 + 3/42 - 2/3 ÷ 1/2) × 2/5 5268.32 - 256986.3 + 456 - 52 × 85% + 3/7 × 49/9 - 4/39 × 5/12 + 1/272 × 5/6 - 2/9 × 33 × 5/4 + 1/494 ÷ 3/8 - 3/8 ÷ 65/9 + 3/96/2 - (3/2 + 4/5)8 + (1/8 + 1/9)8 × 5/6 + 5/6 = 8 5/61/4 × 8/9- 1/3 = 1/910 × 5/49 + 3/14 = 13/98 1.5×(1/2 + 2/3)= 2.252/9×4/5 + 8×11/5 = 94/45 3.1 × 5/6 –5/6 = 2.354/7 -(2/7–10/21)= 4/2119 × 18 –14 × 2/7 = 332 4/75 × 25/16 + 2/3 × 3/4 = 27/44 × 8/7 –5/6 × 12/15 = 46/217/32–3/4 × 9/24 = -67/1922/3÷1/2-1/4×2/5 = 5/62-6/13÷9/26-2/3 = -2 79/338 2/9+1/2÷4/5+3/8 = 67/9010÷5/9+1/6×4 = 46/31/2×2/5+9/10÷9/20 = 1/25/9×3/10+2/7÷2/5 = 31/1261/2+1/4×4/5-1/8 = 5/83/4×5/7×4/3-1/2 = 5/1423-8/9×1/27÷1/27 = 238×5/6+2/5÷4 = 33/101/2+3/4×5/12×4/5 = 11/208/9×3/4-3/8÷3/4 = 11/245/8÷5/4+3/23÷9/11 = 1/21.2×2.5+0.8×2.5 =3.58.9×1.25-0.9×1.25 = 1012.5×7.4×0.8 = 749.9×6.4-(2.5+0.24)= 60.16 27)6.5×9.5+6.5×0.5 = 1794.5 0.35×1.6+0.35×3.4 = 0.9450.25×8.6×4 = 8.66.72-3.28-1.72 = 1.720.45+6.37+4.55 = 11.375.4+6.9×3-(25-2.5)= 16.22×-620-380 =4.8×46+4.8×54 = 5040.8+0.8×2.5 = 21.25×3.6×8×2.5-12.5×2.4 = 71.5 28×12.5-12.5×20 = 25023.65-(3.07+3.65)= 16.934+0.4×0.25)8×7×1.25 = 70 1.65×99+1.65 = 163.3527.85-(7.85+3.4)= 16.648×1.25+50×1.25×0.2×8 = 170 7.8×9.9+0.78 = 77.221010+309+4+681+6)×12 =3×9146×782×6×854 = 1.4×10^115.15×7/8+6.1-0. = 10.3/7 × 49/9- 4/3 = -11/218/9 × 15/36 + 1/27 = 7/5412× 5/6 –2/9 ×3 = 19 7/188× 5/4 + 1/4 = 116÷ 3/8 –3/8 ÷6 = 5 5/84/7 × 5/9 + 3/7× 5/9 = 1/25/2 -(3/2 + 4/5)= 9/107/8 +(1/8 + 1/9)= 29/369.9 × 5/6 + 5/6 = 10.453/4 × 8/9- 1/3 = 1/91.(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)改写为:计算表达式:(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)2.5.6×0.258×(20-1.25)改写为:计算表达式:5.6×0.258×(20-1.25)3.(-7.1)×〔(-3)×(-5)〕÷2改写为:计算表达式:(-7.1)×〔(-3)×(-5)〕÷24.-2.5×(-4.8)×(0.09)÷(-0.27)改写为:计算表达式:-2.5×(-4.8)×(0.09)÷(-0.27)5.127+352+73+44×(-2)改写为:计算表达式:127+352+73+44×(-2)6.89×276+(-135)-33改写为:计算表达式:89×276+(-135)-337.25×71+75÷29-88÷(-2)改写为:计算表达式:25×71+75÷29-88÷(-2)8.243+89+111+57改写为:计算表达式:243+89+111+579.9405-2940÷28×21改写为:计算表达式:9405-2940÷28×2110.920-1680÷40÷7改写为:计算表达式:920-1680÷40÷711.690+47×52-398改写为:计算表达式:690+47×52-39812.148+3328÷64-75改写为:计算表达式:148+3328÷64-7513.360×24÷32+730改写为:计算表达式:360×24÷32+73014.2100-94+48×54改写为:计算表达式:2100-94+48×5415.51+(2304-2042)×23改写为:计算表达式:51+(2304-2042)×2316.4215+(4361-716)÷81改写为:计算表达式:4215+(4361-716)÷8117.(247+18)×27÷25改写为:计算表达式:(247+18)×27÷2518.36-720÷(360÷18)改写为:计算表达式:36-720÷(360÷18)19.1080÷(63-54)×80改写为:计算表达式:1080÷(63-54)×8020.(528+912)×5-6178改写为:计算表达式:(528+912)×5-617821.8528÷41×38-904改写为:计算表达式:8528÷41×38-90422.264+318-8280÷69改写为:计算表达式:264+318-8280÷69 23.796-5040÷(630÷7)改写为:计算表达式:796-5040÷(630÷7)24.285+(3000-372)÷36改写为:计算表达式:285+(3000-372)÷3625.1+5/6-19/12改写为:计算表达式:1+5/6-19/1226.3x(-9)+7x(-9)改写为:计算表达式:3x(-9)+7x(-9)27.(-54)x1/6x(-1/3)改写为:计算表达式:(-54)x1/6x(-1/3)28.1.18.1+(3-0.299÷0.23)×1改写为:计算表达式:1.18.1+(3-0.299÷0.23)×129.2.(6.8-6.8×0.55)÷8.5改写为:计算表达式:2.(6.8-6.8×0.55)÷8.530.0.12× 4.8÷0.12×4.84改写为:计算表达式:0.12× 4.8÷0.12×4.8431.3.2×1.5+2.5÷(-1.6)改写为:计算表达式:3.2×1.5+2.5÷(-1.6)32.(-2)×3.2×(1.5+2.5)÷1.6改写为:计算表达式:(-2)×3.2×(1.5+2.5)÷1.633.5.6-1.6÷4+(6.8-9)改写为:计算表达式:5.6-1.6÷4+(6.8-9)34.5.38+7.85-5.37÷89改写为:计算表达式:5.38+7.85-5.37÷8935.6.7.2÷0.8-1.2×5改写为:计算表达式:6.7.2÷0.8-1.2×536.6-1.19×3-0.43改写为:计算表达式:6-1.19×3-0.4337.6.5×(4.8-1.2×4)改写为:计算表达式:6.5×(4.8-1.2×4)38.0.68×1.9+0.32×1.9改写为:计算表达式:0.68×1.9+0.32×1.939.10.15-10.75×0.4-5.7改写为:计算表达式:10.15-10.75×0.4-5.740.5.8×(3.87-0.13)改写为:计算表达式:5.8×(3.87-0.13)41.(-8.01)+4.2×3.74改写为:计算表达式:(-8.01)+4.2×3.7442.32.52-(6+9.728÷3.2)×2.5改写为:计算表达式:32.52-(6+9.728÷3.2)×2.5 43.[(7.1-5.6)×0.9-1.15]÷2.5改写为:计算表达式:[(7.1-5.6)×0.9-1.15]÷2.544.5.4÷[2.6×(3.7-2.9)+0.62]改写为:计算表达式:5.4÷[2.6×(3.7-2.9)+0.62]45.12×6÷(12-7.2)-6改写为:计算表达式:12×6÷(12-7.2)-646.12×6÷7.2-6改写为:计算表达式:12×6÷7.2-647.33.02-(148.4-90.85)÷2.5改写为:计算表达式:33.02-(148.4-90.85)÷2.548.(-5)-252×(-78)改写为:计算表达式:(-5)-252×(-78)6)×(-2)+3÷(5+50) = 12 + 3/557-7+3-6-(-90) = 778)(-3)×(-8)×25 = 48007+13)÷(-616)÷(-28) = 1/8+14-100-27)÷4 = -26/4 = -13/2 15)÷(-1)-101÷10 = 15-10.1 = 4.916÷0.21×(-8)×(4.1+5.9) = -54410)×(-2)×4÷{-9÷[6+(-5.67)]} = 320/3 18)(-4)2×[8.01×(-3.14)] = 7257.129-32{-890-[79+8.1]×9} = -20)-23+(-9)×9.42 = -113.9824)3.4×104÷(-5)×200.96 = .298|+76+(-87)]×23/[56+(-75)-(7)]-(8+4+3)×5+21×8/2-6-59 = -3768/21-8-11×8+61 = -5/212/9-7/9-56 = -559/814.6-(-3/4+1.6-4-3/4) = 12.11/2+3+5/6-7/12 = 3 1/42/3-4-1/4*(-0.4)]/1/3+2 = -7/622+(-4)+(-2)+4×3 = 282×8-8×1/2+8/1/8 = -19.52/3+1/2)/(-1/12)×(-12) = -1128)/(-6+4)+(-1)+√9 = -22/(-2)+0/7-(-8)×(-2) = -301/4-5/6+1/3+2/3)/1/2 = 1/1218-6/(-3)×(-2)×2^7 = 38645+3/8×8/30)/(-2)-√36 = -5/1284)/2×(-3)/(-6) = 211/2×(-4/15)/2/3 = -1/251+2+3+4+。

(完整版)初中精选数学计算题200道

(完整版)初中精选数学计算题200道

(完整版)初中精选数学计算题200道4. x2-5x=05. x2-x-1=06. 化简3寸反+6、^言-2x7. 因式分解 x 4-8x2y2+16y 42 1 _ 5 8. 2x+1 +2x-1 =4x2-1 9. 因式分解(2x+y) 2 -(x+2y) 2 10. 因式分解-8a2b+2a3+8ab2 11. 因式分解a 4-161 14. ( -V3 )o- I -3 I +(-1)2015+(2 )-1计算题1.2. 5x+2 3 x2+x ~x+13.会+工=1 x-4 4-x 1* *12.因式分解3ax2-6axy+8ab213.先化简,再带入求值(x+2)x2-2x+1(x-1)-,x= 33 ,,118. (-3-1) X (- 2 )2-2-1 + (- 2 )320. (x+1) 2-(x+2)(x-2) — 1』21. sin60 - I 1-V 3 I + (2 ) -1 22.(-5) 16x (-2)15(结果以幕的形式表示)23. 若 n 为正整数且(m n ) 2 =9,求(1 m 3n ) 3 (m2)2n3 24. 因式分解 a2+ac-ab-bc 25. 因式分解 x2-5x+6 26. 因式分解(x+2)(x+3)+x 2-4 27. 因式分解(a2+1) 2-4a2 128. -12016+18 + (-3) X I -2 I17. 2x-1 (x+1 x-2 -x+1)/ x2+2x+1 19.1 2x-1 34x 2、一 134.计算(-1) 2 - 4 X [2- (-3) 2]35. 解二元一次方程组x-2y=136. 解二元一次方程组37. 解二元一次方程组38.39.40. 虹x+3y=6 2(x-y)3匚5y-x=3x+2y=6 I 3x-2y=2解不等式 3 (x-1) >2x+23x+1 7x-3 解不等式飞3x+y4122(x-2)5 v 20化简a(a-1) 2-(a+1)(a2-a+1)a 41. (a-b_b_+ b-a)1a+b一 - 142.当m*,求代数式1 m+一m143. (2 ) -1-(也-1) o + -3 Itan45o-cos60o+ cos30o tan60山x2-5x+6 44.先化简再求值总寂3.(1奇2)(1+x-3 ),其中x^/345-先化简再求值悬’其中x =-1,y =246. 解方程 x2-3x=047. 6-」(-2)2 - 2-1+ (-3.14) o+拒 +cos245148.计算(A /3 ) 2+4X (- 2 ) -2349.先化简,再求值(a+b) (a-b)+b(b-2),其中 a 淄 ,b=-1a b2 a+b52. 化间 [a-b +a(b-a) ] 无53. 计算-22+(3-3.14) o+3sin30 54.计算(1 ) -1+ (2006-兀)o - V3 tan60 355. 计算 2013-(兀-3.14) o+l-3 I + (-1) 56.157. 计算:-2斗1-3.14|+ (-洞2X 表)颂、3七、「苹 tan 疗 111-Vsl-(5兀+2013)。

数学计算题100道初中

数学计算题100道初中

数学计算题100道初中数学一直是学生们学习中不可或缺的一门学科,通过大量练习和计算题目的训练,可以帮助学生提高解决问题的能力和逻辑思维。

下面将给出100道初中数学计算题,供学生们进行练习。

1.45 + 32 =2.98 - 63 =3. 6 x 7 =4.84 ÷ 4 =5. 3.5 + 2.7 =6.9.8 - 4.3 =7. 5.6 x 4.2 =8.16.8 ÷ 2.4 =9.1/4 + 2/3 =10.3/5 - 1/10 =11.(5 + 3) x 2 =12.(20 - 6) ÷ 4 =13.2^3 =14.√49 =15.2/5 of 40 =16.30% of 150 =17.3/4 + 1/2 =18.0.6 x 0.7 =19.4^2 + 3^2 =20.√81 + √16 =21.(12 - 5) x 3 =22.54 ÷ (6 + 2) =23.3/8 of 64 =24.25% of 200 =25.5/6 - 1/3 =26.0.45 x 2.5 =27.7^2 - 4^2 =28.√144 - √25 =29.(9 + 7) x (5 - 3) =30.3/4 ÷ 1/2 =31. 2 x (4 x 2) =32.36 ÷ (4 x 2) =33.1/5 of 200 =34.40% of 120 =35.1/3 + 1/6 =36.0.75 x 2.8 =37.8^2 ÷ 4 =38.√256 + √36 =39.(15 - 7) x 2 =40.3/5 ÷ 2/3 =41. 5 x (9 + 3) =42.72 ÷ (8 + 4) =43.3/10 of 80 =44.60% of 180 =45.2/3 - 1/4 =46.0.85 x 3.5 =47.9^2 - 5^2 =48.√225 - √49 =49.(20 + 10) x (8 - 5) =50.5/8 ÷ 1/4 =51. 3 x (5 x 4) =52.48 ÷ (6 x 2) =53.1/6 of 300 =54.50% of 160 =55.1/2 + 1/3 =56.0.4 x 3.2 =57.6^2 ÷ 2 =58.√400 + √64 =59.(18 - 9) x 3 =60.4/7 ÷ 2/5 =61.7 x (8 + 2) =62.80 ÷ (10 + 2) =63.1/8 of 128 =64.70% of 140 =65.3/4 - 2/5 =66.0.6 x 1.9 =67.10^2 ÷ 5 =68.√625 - √81 =69.(14 + 6) x (7 - 4) =70.6/9 ÷ 1/3 =71. 4 x (6 x 3) =72.96 ÷ (8 x 3) =73.1/7 of 210 =74.45% of 240 =75.4/5 + 1/4 =76.0.25 x 4.6 =77.5^2 - 3^2 =78.√324 + √49 =79.(24 - 12) x 4 =80.7/9 ÷ 3/5 =81.8 x (3 + 5) =82.72 ÷ (9 + 3) =83.1/9 of 180 =84.80% of 220 =85.5/6 - 1/2 =86.0.35 x 3.6 =87.11^2 ÷ 3 =88.√729 - √121 =89.(22 + 8) x (6 - 2) =90.7/10 ÷ 2/5 =91. 6 x (7 x 2) =92.54 ÷ (6 x 3) =93.1/3 of 240 =94.70% of 180 =95.2/5 + 1/3 =96.0.8 x 3.2 =97.6^2 - 2^2 =98.√361 + √25 =99.(18 - 6) x 5 =100.8/11 ÷ 4/11 =这些计算题目涵盖了加减乘除、分数、百分比、幂次方、平方根等各种类型的题目,希會对学生们的数学能力有所提升。

初中精选数学计算题200道

初中精选数学计算题200道
1 x 97. 化简 1 x
2
1 x
6
98. 化简: (
x2 x 1 x 2 16 , ) x2 2x x2 4x 4 x2 4x
其中 x 2
2
99. 化简并求值:
1 1 a b a 2 b2 ,其中 2a a b 2a
2(a 3)(a 3) a(a 6) 6 , 其中
127. 先化简,再求值:
a 2 1.
128. 解方程: 129. 130. 131.
2 3 0 x2 x
1 ( x 4) 2, 解不等式组 2 x 3( x 1) 5.
1 ( ) 1 3 tan 30 0 (1 2 ) 0 12 ; 2 a 1 a 1 1 ( 2 ) a a 2 a 2a
40. 化简 a(a-1) ²-(a+1)(a²-a+1) a b 1 41. ( + )÷ a-b b-a a+b 42. 当 m= 43. ( 1 5-2 ,求代数式 m+ 1 m
tan45º-cos60º 1 -1 ) - ( 2 -1)0+∣-3∣+ ·tan60° 2 cos30º x²-5x+6 3 2 · (1)· (1+ ),其中 x= 3 x+1 x-3 3x²-3x
1 x2 4 ,其中 ) x3 x3
132. 先化简,再求值. (1
2
x=3
2
133. 已知 x -2x=1,求(x-1)(3x+1)-(x+1) 的值 134. 先化简,再求值: 135. 136.
1 a 1 a 1 2 ,其中 a 2. a 1 a 2a 1 a 1 先化简,再求值: ( x 2 5 ) x 3 ,其中 x 2 3 x 2 2x 4 1 4 解分式方程: 3 . 3x 1 6 x 2

初中的数学计算的题目(200道)

初中的数学计算的题目(200道)

初中数学计算题(200道)(-1.5)×(-9)-12÷(-4)56÷(-7)-2÷5+0.43.57×29÷(-4)5.6÷(-2.8)-(-50)÷2[9.6+(-7.3)]×[(-5)-(-7)]12.3÷[5.6+(-1.2)](-75.6)÷(1/4+1/5)9.5×(-9.5)÷1/295.77÷(-2)+(-34.6)(-51.88)÷2-(-5)×241.25*(-3)+70*(-5)+5*(-3)+25 9999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 –2/9 ×38× 5/4 + 1/46÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 –5/6 × 12/15 17/32 –3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 –1/5 × 21 50+160÷40120-144÷18+35347+45×2-4160÷5237×(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.958+370)÷(64-45)420+580-64×21÷28136+6×(65-345÷23)15-10.75×0.4-5.718.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×6+(1.5+2.5)÷1.60.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.576.(25%-695%-12%)*3677./4*3/5+3/4*2/578.1-1/4+8/9/7/979.+1/6/3/24+2/2180./15*3/581.3/4/9/10-1/682./3+1/2)/5/6-1/3]/1/783./5+3/5/2+3/484.(2-2/3/1/2)]*2/585.+5268.32-256986.3+456-52*887.5%+632588./2+1/3+1/489+456-785%+. 3/7 × 49/9 - 4/3 9 × 15/36 + 1/272× 5/6 –2/9 ×33× 5/4 + 1/494÷ 3/8 –3/8 ÷695/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8 × 5/6 + 5/61/4 × 8/9 - 1/310 × 5/49 + 3/141.5 ×( 1/2 + 2/3 )2/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/64/7 - ( 2/7 – 10/21 )19 × 18 –14 × 2/75 × 25/16 + 2/3 × 3/4 4 × 8/7 –5/6 × 12/15 7/32 –3/4 × 9/242/3÷1/2-1/4×2/52-6/13÷9/26-2/32/9+1/2÷4/5+3/810÷5/9+1/6×41/2×2/5+9/10÷9/205/9×3/10+2/7÷2/51/2+1/4×4/5-1/83/4×5/7×4/3-1/223-8/9×1/27÷1/278×5/6+2/5÷41/2+3/4×5/12×4/58/9×3/4-3/8÷3/45/8÷5/4+3/23÷9/111.2×2.5+0.8×2.58.9×1.25-0.9×1.2512.5×7.4×0.89.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.40.25×8.6×46.72-3.28-1.720.45+6.37+4.555.4+6.9×3-(25-2.5)2×41846-620-3804.8×46+4.8×540.8+0.8×2.51.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2023.65-(3.07+3.65)(4+0.4×0.25)8×7×1.25 1.65×99+1.6527.85-(7.85+3.4)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78(1010+309+4+681+6)×123×9146×782×6×8545.15×7/8+6.1-0.606253/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 –2/9 ×38× 5/4 + 1/46÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9. 9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/414 × 8/7 –5/6 × 12/1517/32 –3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 –1/5 × 2150+160÷40 (58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 420+580-64×21÷28812-700÷(9+31×11)(136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 6-1.6÷45.38+7.85-5.377.2÷0.8-1.2×56-1.19×3-0.4347.6.5×(4.8-1.2×4)0.68×1.9+0.32×1.948.10.15-10.75×0.4-5.749.5.8×(3.87-0.13)+4.2×3.7450.32.52-(6+9.728÷3.2)×2.551.[(7.1-5.6)×0.9-1.15] ÷2.552.5.4÷[2.6×(3.7-2.9)+0.62]53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6102×(-4.5)-(-3)×(-5) ÷27.8×6.9+2.2×6.9(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)5.6×0.258×(20-1.25)(-7.1) ×〔(-3)×(-5)〕÷2-2.5×(-4.8)×(0.09)÷(-0.27) 127+352+73+44×(-2)89×276+(-135)-3325×71+75÷29 -88÷(-2)243+89+111+579405-2940÷28×21920-1680÷40÷7690+47×52-398148+3328÷64-75360×24÷32+7302100-94+48×5451+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷41×38-904264+318-8280÷69(174+209)×26- (9000^0)814-(278+322)÷151406+735×9÷453168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷361+5/6-19/123x(-9)+7x(-9)(-54)x1/6x(-1/3)1.18.1+(3-0.299÷0.23)×12.(6.8-6.8×0.55)÷8.53.0.12×4.8÷0.12×4.843.2×1.5+2.5÷(-1.6)(-2)×3.2×(1.5+2.5)÷1.6 5.6-1.6÷4+(6.8-9)5.38+7.85-5.37÷896.7.2÷0.8-1.2×56-1.19×3-0.437.6.5×(4.8-1.2×4)0.68×1.9+0.32×1.98.10.15-10.75×0.4-5.79.5.8×(3.87-0.13)(-8.01)+4.2×3.7410.32.52-(6+9.728÷3.2)×2.511.[(7.1-5.6)×0.9-1.15] ÷2.512.5.4÷[2.6×(3.7-2.9)+0.62]13.12×6÷(12-7.2)-614.12×6÷7.2-615.33.02-(148.4-90.85)÷2.5(-5)-252×(-78)(-6) ×(-2)+3÷(5+50)7-7+3-6-(-90)(-8)(-3)×(-8)×25(7+13) ÷(-616)÷(-28)(8+14-100-27)÷4(-15) ÷(-1)-101÷1016÷0.21×(-8) ×(4.1+5.9)(-10) ×(-2) ×4÷{-9÷[6+(-5.67)]}(-18)(-4)2×[8.01×(-3.14)9-32{-890-[79+8.1] ×9}(-20)-23+(-9) ×9.42(-24)3.4×104÷(-5) ×200.96[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1) +√92/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2) ×2^7(5+3/8*8/30/(-2)- √36(-84)/2*(-3)/(-6)1/2*(-4/15)/2/31+2+3+4+......+1000001/1+1/2+1/3+......1/501+1/2+1/4+1/8+1/16+......1/5123+9+27+81+243+ (9999)1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90 8-2×32-(-2×3)2–12 × (-3)2-(-1/2)2003×(-2)2002÷2/9 (0.5-3/2)÷3/1×[-2-(-3)3]-∣1/8-0.52∣[-38-(-1)7+(-3)8]×-53a^3-2b^3+ab(2a-b)-√a-b^215*(-8)+2b^2+(x^2+y^2)^2-4y(x^2+y^2)+4y^26-3a^8-(-5^2-6)(x^2+2x)^2+3(x^2+2x)+x^2+2x+3(a+1)(a+2)+(2a+1)(a-2)-12x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^23(a+2)^2+28(a+2)-20(a+b)^2-(b-c)^2+a^2-c^28x(x+1)(x^2+x-1)-2x^2(x-1)^2-3(x^2-x)-5614a(a-b)+(a-b)^211.-ab(a-b)^+a(b-a)^212.3(x+2)-2x=5-4x13.5(x+2a)-a=2(b-2x)+4a3.14*3.42 (2)972*3.14*1/4[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-√121-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(|-2|-5^4)(1/3+2/3)/1/2-|-9+(-5)|18-6/(-3)*(-2)-|-9|(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3|-3x+2y-5x-7y|-|-9x+2y| -5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3-√64-5^2 -2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2)(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3+√9-3x+2y-5x-7y+-5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)1/2+3+5/6-7/12[2/3-4-1/4*(-0.4)]/1/3+222+(-4)+(-2)+4*3-2*8-8*1/2+8/1/8(2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1)2/(-2)+0/7-(-8)*(-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2)(5+3/8*8/30/(-2)-3(-84)/2*(-3)/(-6)1/2*(-4/15)/2/3-3x+2y-5x-7y-(-3^2+5^7)-1+2-3+4-5+6-7+√9-50-28+(-24)-(-22)-19.8-(-20.3)-(+20.2)-10.8;0.25- +(-1 )-(+3 ).-1-23.33-(+76.76)1-2*2*2*2-5^2+(6^2-5^2) (-6-24.3)-(-12+9.1)+(0-2.1) -1+8-7+5^7-(-5+√9)125*3+125*5+25*3+259999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 × 49/9 - 4/38/9 × 15/36 + 1/2712x*5/6y–2/9y*|3x-2y| 8×5/4+1/4*|-7-8|6÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 –5/6 × 12/15 17/32 –3/4 × 9/243^45 × 2/9 + 1/35/7 × 3/25 + 3/73/14 ×2/3 + 1/61/5 × 2/3 + 5/65/3 × 11/5 + 4/39/22+1/11÷1/2-√16945^8 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101^4×(-1/5–1/5×21)50+√160÷40^5120-144÷18+35347+45×2-4160÷5237^2(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42812-700÷(9+31×11)85+14×(14+208÷26)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)=5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-60.68×1.9+0.32×1.958+370)÷(64-45)420+580-64×21÷28136+6×(65-345÷23)15-10.75×0.4-5.718.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×6+(1.5+2.5)÷1.60.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.5 76.(25%-695%-12%)*367/4*3/5+3/4*2/51-1/4+8/9/7/97+1/6/3/24+2/218/15*3/53/4/9/10-1/68/3+1/2)/5/6-1/3]/1/7 9/5+3/5/2+3/48^6(2-2/3/1/2)]*2/58+5268.32-25693+456-52*887.5%+63258/2+1/3+1/489+456-785%+. 3/7 × 49/9 - 4/3 9 × 15/36 + 1/272× 5/6 –2/9 ×33× 5/4 + 1/494÷ 3/8 –3/8 ÷695/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8 × 5/6 + 5/61/4 × 8/9 - 1/310× 5/49 + 3/142/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/64/7 - ( 2/7 – 10/21 )19 × 18 –14 × 2/75 × 25/16 + 2/3 × 3/4 4 × 8/7 –5/6 × 12/15 7/32 –3/4 × 9/242/3÷1/2-1/4×2/52-6/13÷9/26-2/32/9+1/2÷4/5+3/810÷5/9+1/6×41/2×2/5+9/10÷9/205/9×3/10+2/7÷2/51/2+1/4×4/5-1/83/4×5/7×4/3-1/223-8/9×1/27÷1/2718×5/6+2/5÷411/2+3/4×5/12×4/58/9×3/4-3/8÷3/45/8÷5/4+3/23÷9/11 1.2×2.5+0.8×2.58.9×1.25-0.9×1.2512.5×7.4×0.86.5×9.5+6.5×0.50.35×1.6+0.35×3.40.25×8.6×46.72-3.28-1.720.45+6.37+4.555.4+6.9×3-(25-2.5)2×41846-620-3804.8×46+4.8×540.8+0.8×2.51.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2023.65-(3.07+3.65)(4+0.4×0.25)8×7×1.25 1.65×99+1.6527.85-(7.85+3.4)48×1.25+50×1.25×0.2×8 7.8×9.9+0.78(1010+309+4+681+6)×123×9146×782×6×8545.15×7/8+6.1-0.606253/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 –2/9 ×38× 5/4 + 1/46÷ 3/8 –3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/146 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 )5/9 × 18 –14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 –5/6 × 12/15 17/32 –3/4 × 9/243 × 2/9 + 1/35/7 × 3/25 + 3/73/14 × 2/3 + 1/61/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/25/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/61/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2101 × 1/5 –1/5 × 2150+160÷40 (58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 420+580-64×21÷28812-700÷(9+31×11)(136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×(1.5+2.5)÷1.66-1.6÷4= 5.38+7.85-5.37=7.2÷0.8-1.2×5= 6-1.19×3-0.43=6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5[(7.1-5.6)×0.9-1.15] ÷2.55.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-6 (4)12×6÷7.2-6 102^2×4.5+8^5-√5297.8×6.9+2.2×6.95.6×0.258×(20-1.25)127+352+73+4489+276+135+3325+71+75+29 +88243+89+111+579405-2940÷28×21920-1680÷40÷7690+47×52-398148+3328÷64-75360×24÷32+7302100-94+48×5451+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷41×38-904264+318-8280÷69(174+209)×26- 9000814-(278+322)÷151406+735×9÷453168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷361+5/6-19/123x(-9)+7x(-9(-54)x1/6x(-1/3)18.1+(3-0.299÷0.23)×1 (6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.63.2×(1.5+2.5)÷1.65.6-1.6÷45.38+7.85-5.377.2÷0.8-1.2×56-1.19×3-0.436.5×(4.8-1.2×4)0.68×1.9+0.32×1.9115-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-612×6÷7.2-633.02-(148.4-90.85)÷2.5二.解方程2x=7(x-5)8(3x+3)=2404.74+4x-2.5x=8.1(2.81+x)÷2.81=115x-30=16(x-2)(-3)^3-3^3(-1)^2-5.62^2+3^3-4^4(2^4-3^2)^3-5^5[(1.6^2-2^3)-2.1]^2(5.66×2)^2-15^2(-15)^x=225,x=?[(-4)^2-4^2]×2^2[(-5.6)^2+3]^2[5.6^2+(-5.6)^2]×(-1)^23x+28-x=561.5x+6=3.752(3.6x+2.8)=-1.69.5x+9.5=1918(x-35)=-36x+7-(-36+8^2)/2=8+7^4/3a-7-98+7a=3.2*5a89/2+35/6x=3*9+2^3/5+7x3X+189/3=521/24Y+119*^3=22/113X*189=5*4^5/38Z/6=458/53X+77=594Y-6985=8187X*13=57Z/93=4115X+863-65X=5458Y*55=274897(2x-1)-3(4x-1)=4(3x+2)-1(5y+1)+ (1-y)= (9y+1)+ (1-3y) [-6(-7^4*8)-4]=x+220%+(1-20%)(320-x)=320×40%2(x-2)+2=x+12(x-2)-3(4x-1)=9(1-x)11x+64-2x=100-9x15-(8-5x)=7x+(4-3x)3(x-7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=22x+7^2=1571)判断题:判断下列方程是否是一元一次方程:①-3x-6x2=7( )③5x+1-2x=3x-2 ( )④3y-4=2y+1. ( )判断下列方程的解法是否正确:①解方程3y-4=y+3解:3y-y=3+4,2y=7,y=3.5②解方程:0.4x-3=0.1x+2解:0.4x+0.1x=2-3;0.5x=-1,x=-2③解方程解:5x+15-2x-2=10,3x=-3,x=-1;④解方程解:2x-4+5-5x=-1,-3x=-2,x= .( )2)填空题:(1)若2(3-a)x-4=5是关于x的一元一次方程,则a≠_ (2)关于x的方程ax=3的解是自然数,则整数a的值为_ (3)方程5x-2(x-1)=17 的解是_(4)x=2是方程2x-3=m- 的解,则m=_ .(5)若-2x2-5m+1=0 是关于x的一元一次方程,则m=_ . (6)当y=_ 时,代数式5y+6与3y-2互为相反数.(7)当m=_ 时,方程的解为0.(8)已知a≠0.则关于x的方程3ab-(a+b)x=(a-b)x的解为______ .3)选择题:(1)方程ax=b的解是().A.有一个解x= B.有无数个解C.没有解 D.当a≠0时,x=(2)解方程 ( x-1)=3,下列变形中,较简捷的是()A.方程两边都乘以4,得3( x-1)=12B.去括号,得x- =3C.两边同除以,得 x-1=4D.整理,得(3)方程2- 去分母得()A.2-2(2x-4)=-(x-7)B.12-2(2x-4)=-x-7C.12-2(2x-4)=-(x-7)D.以上答案均不对(4)若代数式比大1,则x的值是().A.13 B. C.8 D.(5)x=1.5是方程()的解.A.4x+2=2x-(-2-9)B.2{3[4(5x-1)-8]-2}=8C.4x+9 =6x+64)解答下列各题:(1)x等于什么数时,代数式的值相等?(2)y等于什么数时,代数式的值比代数式的值少3?(3)当m等于什么数时,代数式2m- 的值与代数式的值的和等于5?(4)解下列关于x的方程:①ax+b=bx+a;(a≠b);三.化简、化简求值化间求值:1、-9(x-2)-y(x-5)(1)化简整个式子。

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初中数学基本运算能力训练
1.计算:345tan 3231211
-︒-⨯⎪⎭⎫
⎝⎛+⎪⎭⎫ ⎝⎛-- 。

【原式32+=】 2.计算:(
)
()
()
︒⨯-+-+-+
⎪⎭

⎝⎛-30tan 3312120122010311001
2。

【原式= 8】 3.计算:()
(
)
11
2230sin 4260cos 18-+
︒-÷︒---。

【原式32-=】 4.解不等式组:⎪⎩⎪
⎨⎧-≤--x x x
x 238262> ,并把它的解集表示在数轴上。

【2<x ≤4】 5.解不等式组:⎪⎩⎪
⎨⎧-≤-++x x x x 231121)1(375> 。

【-2<x ≤1】 【例题】解分式方程:15612
-•
=+⎪⎭

⎝⎛-x x x x 。

解 整理方程,得156)
1(2
2-•=+-x x
x x 去分母,得22
2)1(1
5)1(6-•-•
=-+x x x
x x 整理,得)(5)12(62
2
2
x x x x x -=--+ 去括号,得x x x x x 5561262
2
2
-=+-+ 移项、合并同类项,得06722
=+-x x 由十字相乘法,得0)32)(2(=--x x 即02=-x 或032=-x
解得21=x ,2
3
2=
x 。

经检验,21=x ,2
3
2=x 均是原分式方程的根。

∴原分式方程的根为21=x ,2
3
2=x 。

6.解方程:32
2
23=-++x x x 【4=x 】 7.解方程:()()0223222
=++-+x x x x 【2=x 】
8.如果关于x 的方程
3
132--=-x m
x 有增根,则m 的值等于 。

【2-】 原方程为分式方程,故解时应先去分母,又因为方程两边有公分母1-x ,故将左边的平方放入分子、分母【运
用的公式是222
b a b a =⎪⎭
⎫ ⎝⎛】 ,
然后在方程两边同时乘以它们的最简公分母2
)1(-x 。

【方程左右不能约掉
1
+x x ,否则会使方程失去一个根】
9.化简:4223112
22--÷+++•⎪⎭⎫ ⎝

+-a a a a a a a a a 。

【1+a a 】 10.先化简,再求值:⎪⎭⎫ ⎝⎛+---÷--11211222x x x x x x ,其中21=x 。

【原化简为1
1
-x ,值为-2】 11.先化简,再求值:4
422121
2
+-÷⎪⎭⎫
⎝⎛++-a a a a a ,其中4-=a 。

【原式化简为22+-a a ,值为3】 12.先化简,再求值:⎪⎭

⎝⎛++⨯--111112x x x ,其中0=x 。

【原式化简为2+x ,值为2】 13.
9
1的算术平方根是 , 3
2的平方根是 。

14.2
)23(-的值是 ,将
1
32-分母有理化的值是 。

15.规定运算:b a b a -=*)(,其中b a 、为实数,则=+*7)37( 。

16.设1-=
x x A ,11
32+-=x B ,当x 为何值时,A 与B 的值相等? 17.解分式方程x x x --=---411143 4
3
1222-=-+-x x x 18.解不等式组:并把解集在数轴上表示出来.
19.解方程组:050
425=-+=--y x y x 2
3
22)1(3)1(4=+--=--y x y y x
20.解方程:2230x x --= 0)3(2)3(2
=-+-x x x 0342
=+-x x
21.先化简,再求值:(1)x x x x x x x 1
)1
21(
2
2÷+---+,其中12+=x (2)(
212x x --21
44
x x -+)÷222x x -,其中x =1
(3)先化简分式:a (-3+4+3
a a )÷-2+3a a ?+3
+2a a ,再从-3、5-3、2、-2中选一个你喜欢的数作为a 的值
代入求值.
(4)先化简再求值()1
21112222+--++÷-+a a a a a a 其中a=3+1 (5)先化简,再求值:(1﹣)÷
,其中a=sin60°
中考真题
1. (北京)计算:(+--01
2010)
3
1|-43|-tan60°
2.(上海)计算:1
213
1271)()
2-+- . 3.(重庆)计算:102010)51()5(97)1(-+-⨯+---π. 4.(重庆市潼南县) (6分)计算:(π-0-|-3|+1
21-⎪⎭
⎫ ⎝⎛-(-1)2010
.
5.(綦江县)计算:()()1
312222π-⎛⎫---++- ⎪⎝⎭.6.(江津)计算:1
20114520104-⎛⎫-+︒+ ⎪⎝⎭
7.(山西)计算:.)23(45sin 2)
2
1
(91
-+--+- 8.
(济南)计算:12-4cos30°-3+(2
1)0
9.(济宁)04sin 45(3)4︒+-π+- 10.(荷泽))计算:12-4sin 60°+(4-π)
11.(福州)计算:|-3|+(-1)0
-9
12.(德化)(1)(5分)计算: |-2|-(2-3)0
+2)2
1
(-- ;
13.(晋江)(8分)计算:()02
20103134-÷---. 14.(泉州南安)计算: 43)85(4
1
)1(12+⨯--÷--.
15.(泉州)计算:01
|3|(3)42π--+--+⨯.
16.(莆田)计算:2|2|2
-
7.(兰州)
60tan 2-—0)14.3(-π+2)21(--1221
+
18. (成都)计算:()1
21126.330tan 6-⎪⎭

⎝⎛+--+︒π.
19.(凉山)计算:1201002
(60)(1)|28|(301)21
cos tan -÷-+--
⨯--。

20.(眉山)计算:1
021(
)2)(2)3
---
21.(南充)计算: ()2
28cos303-+︒--.
22. (宜宾)(1)计算:(错误!+1)0
+(– 错误!)–1
– 错误!–2sin45°
23. (巴中)011
1)2sin 454
---︒-()
24. (内江)已知a =(13
)-1,b =2cos45°+1,c =(2010-π)0
,d =|1-2|.
(1)请化简这四个数;
(2)根据化简结果,列式表示这四个数中“有理数的和”与“无理数的积”的差,然后计算结果.
25.(内江)已知非负数a ,b ,c 满足条件a +b =7,c -a =5,设S =a +b +c 的最大值为m ,最小值为n ,则m -n = .
26.(绵阳)(1)计算:(?-2010)0
+(sin60?)-1
-︱tan30?-3︱+38.
27.(泸州) 计算:(-1)
2010
+3--1
28.(自贡)计算(π-2)°+(3
1)-1-27cos30°
29.(广安)计算:001||(4)sin 30
2π-
+-+.
30.(达州)计算:2010
0(1)1)--.
31. (昆明)计算:1
021()320104
--
---+ 32.(曲靖)计算:10)3
1
()1()2(9---+--
33.(宁夏回族自治区)计算:011
( 3.14)()12
π-----. 34.(西宁)计算:4401425.0)14.3()2
1(⨯+---π
35.(遵义)计算:∣-22∣-8-2-1+(3-2)0
36.(铜仁) (-2010)0
+│12sin60°
37.(本溪)2013()(2010)4sin 453
π-⨯----︒.
38.(呼和浩特)计算:1
1(2010)2cos6022π-⎛⎫
--+︒ ⎪⎝⎭
.
39.(赤峰)计算:0
2)23(22)2
1
(45sin 42--+----o
40.(鄂尔多斯)计算:0132)2()3
1(272-⨯--+--π。

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