五年级小数混合简便运算练习题100道
完整五年级小数混合简便运算练习题100道课件
五年级小数混合简便运算练习题10(道1 ) 6.9+ 4.8+ 3.1 0.45外6.2廿3.715.89F2 ) 4.0廿5.4+ 0.983 ) 3.68F 7.56- 2.684 )3.82F 2.9+ 0.18+ 9.15 )5.27+ 2.86- 0.66^ 1.636 ) 47.8- 7.45+8.87 ) 66.86- 8.66- 1.348 ) 3.6X 1025.17 —1.8- 3..85+ 2.34 0.8乳4.669.+ 4.8- 3.13.35- 4.68+ 2.0.398+0.36+3.64区21优.2< 4.72< 3.56.28< 3.513.7—35.6 —1.8—15.6- 7.27.14 —0.53- 2.4773.8 —1.64— 13. — 5.3615.75+3.59 —0.59+14.25X836.8 —3.9— 6.19 ) 28.& 10—28.6.X 7.8+ 78X 0.52+ 4.9- 0.910) 4.8X 100.1.X 9.9 + 56.57.0X 10.8 -0.8X 7.0911 ) 25.4—201全新精品资料-全新公文范文-全程指导写作12 ) 18.7X9.W 18.7613 ) 5.4 3.514 ) 17&15 ) 153 0.25M16 ) 3.8X 4.5+ 3.8X 5.4417 ) 27.5< 3.7 7.5X 3.・2—3.・52^ 2.5^ 0.49.& 0.8— 0..36X 12.5< 8.5令2.5- 0.42&1 0.4刖1.0.89< 100.125^83.9 —4.1+ 6.1—5.94.2X 99^ 4.21.2X2.5X 3146百9.7X 99^ 9.70.6X 10118 ) + 8- 0.1253.X4 0.68 31.X 0.03& 1.2& 0" 2.5^ 0.419 ) 7.2X 0.2+ 2.4X 1.420 ) 3.9X 2.7+ 3.9X 7.321 ) 21X —5.622 ) 2.3X 16+2X23+2.323 ) 46X 57+ 23X 8624 ) 10X 0.87- 0.9X 87201全新精品资料-全新公文范文-全程指导写作25 ) 4.8+8.63+5.2+0.378.9X 1.0118 -1.8- 0.12& 0.815.02-6.8-1.0.43- 13.7< 0.25 -3.7- 10.7< 16.1- 15.K 10..93+0.19+2.81 .74X +1.5X2.2612.7X9內1.275.4X 115.43.65<4.7 - 365 0.32.22 9.9+6.66 6.0. 79 1991.76+0.195+3.2426 ) 2.35+1.713+0.287+7.651.57+0.245+7.6.02+3.6+1.9827 ) 0.134+2.66+0.8627+3.9+0.73+1651+ 4.9—6.528 ) 3.07- 0.38^ 1.6229 ) 3.2升1.79- 0.59^ 1.7530 ) 3.2+ 0.36+ 4.8+ 1.6431 )12.7—32 )7.6X 0.8+ 0.2X 7.633 ) 1.28< 8.6+ 0.72< 8.634 )0.8X 1.2+ 3.7+ 2.71+ 6.323.4 0.8—134 7. 1.23 + 3.4 —0.23 + 6.6.54 — 1.76 — 4.5 0.85< 1912為0.9& 0.83.1*2 3.12< 9- 2.45- 1.550.32X 4030.25X 360.25< 0.7&40.25< 8.5X410.4 —9.6X 0.35加减乘除混合运算运算顺序总结:乘加:在乘加混合运算中,如果没有括号,先算乘法,再算加法。
(完整word版)五年级小数混合简便运算练习题100道
五年级小数混合简便运算练习题100道1)6.9+4.8+3.12)4.02+5.4+0.983)3.68+7.56-2.684)3.82+2.9+0.18+9.15)5.27+2.86-0.66+1.636)47.8-7.45+8.87)66.86-8.66-1.348)3.6×1025.17-1.8-3..85+2.34-0.85+4.669.6+4.8-3.35.6-1.8-15.6-7.27.14-0.53-2.4773.8-1.64-13.8-5.3615.75+3.59-0.59+14.25×836.8-3.9-6.110)411)25.48-12)18.76×9.9+18.7613)5.6÷3.514)17.8÷15)15.2÷0.25÷416)3.83×4.56+3.83×5.44.36×12.5×8.54÷2.5÷0.420÷1.25÷83.9-4.1+6.1-5.94.2×99+4.21.25×2.5×3146.5-9.7×99+9.70.65×10119)7.2×0.2+2.4×1.420)3.9×2.7+3.9×7.321)21×-5.622)2.3×16+2.3×23+2.323)46×57+23×8624)101×0.87-0.91×8725)4.8+8.63+5.2+0.37.74×+1.5×2.2612.7×9.9+1.275.4×11-5.40.79×1991.76+0.195+3.2427)0.134+2.66+0.861.27+3.9+0.73+16.1.5+4.9-6.5 28)3.07-0.38-1.6229)3.25+1.79-0.59+1.7530)3.2+0.36+4.8+1.6431)12.7-32)7.6×0.8+0.2×7.633)1.28×8.6+0.72×8.60.32×4030.25×360.25×0.73×40.25×8.5×410.4-9.6×0.35加减乘除混合运算运算顺序总结:乘加:在乘加混合运算中,如果没有括号,先算乘法,再算加法。
(完整)五年级小数混合简便运算练习题100道课件
五年级小数混合简便运算练习题100 道1 )6.9 +4.8 +3.1 0.456 +6.22 +3.715.89 +2 )4.02 +5.4 +0.983 )3.68 +7.56 -2.684 )3.82 +2.9 +0.18 +9.15 )5.27 +2.86 -0.66 +1.636 )47.8 -7.45+8.87 )66.86 -8.66 -1.348 )3.6 ×1025.17 -1.8 -3..85 +2.34 -0.85 +4.669.6 +4.8 -3. 13.35 -4.68 +2.0.398+0.36+3.640.25 ×16.2 ×4.72 ×3.5+6.28 × 3.513.75 -35.6 -1.8 -15.6 -7.27.14 -0.53 -2.4773.8 -1.64 -13.8 -5.3615.75+3.59 -0.59+14.25× 836.8 -3.9 -6.19 )28.6 ×101-28.6.8 ×7.8 +78×0.522+ 4.9 -0.910 )4.8 ×100.1.5 ×9.9 +56.57.09 ×10.8 -0.8 ×7.0911 )25.48 -12 )18.76×9.9 +18.7613 )5.6 ÷3.514 )17.8 ÷15 )15.2 ÷0.25 ÷ 416 )3.83 ×4.56 +3.83 ×5.4417 )27.5 ×3.7 -7.5 ×3..2 ÷3..52 ÷2.5 ÷0.49.6 ÷0.8 ÷0.0.49 ÷1.0.89 ×100.1 .36 ×12.5 ×8.54 ÷2.5 ÷0.420÷ 1 .25÷ 83.9 -4.1 +6.1 -5.94.2 ×99+4.21.25 ×2.5 ×3146.5-9.7 ×99+9.70.65 ×10118 )÷8÷0.1253.14 ×0.68 +31.4 ×0.03.6 ÷1.25 ÷0.8 ÷2.5 ÷0.419 )7.2 ×0.2 +2.4 ×1.420 )3.9 ×2.7 +3.9 ×7.321 )21×-5.622 )2.3 ×16+2.3×23+2.323 )46×57+23×8624 )101×0.87 - 0.91 ×8725 )4.8+8.63+5.2+0.378.9 ×1.0118 -1.8 ÷0.125÷0.815.02 -6.8-1.0.43- 13.7 ×0.25 -3.7 ÷10.7 ×16.1 - 15.1 ×10..93+0.19+2.81 .74 ×+1.5 ×2.2612.7 ×9.9 +1.275.4 ×11 -5.43.65 ×4.7 -36.5 ×0.32.22 ×9.9+6.66 ×6.0. 79×1991.76+0.195+3.2426 )2.35+1.713+0.287+7.651.57+0.245+7.6.02+3.6+1.9827 )0.134+2.66+0.86 1.27+3.9+0.73+16.1 .5 +4.9-6.528 )3.07 -0.38 -1.6229 )3.25 +1.79 -0.59 +1.7530 )3.2 +0.36 +4.8 +1.6431 )12.7 -32 )7.6 ×0.8 +0.2 ×7.633 )1.28 ×8.6 +0.72 ×8.634 )0.8 ×1.29 +3.7 +2.71 +6.323.4 -0.8 -13.4 -7. 1.23 + 3.4 -0.23 + 6.6.54 - 1.76 - 4.50.85 ×1912.5×0.96 ×0.83.12 +3.12 ×9- 2.45 -1.550.32 ×4030.25 ×360.25 ×0.73 × 40.25 ×8.5 × 410.4 -9.6 ×0.35加减乘除混合运算运算顺序总结:乘加:在乘加混合运算中,如果没有括号,先算乘法,再算加法。
最新人教版五年级数学上册四小数混合运算小数四则混合运算专项练习题能简便的要简便
小数混合运算专项练习276题(能简便的要简便运算)(1)0.11×1.8+8.2×0.11(2) 2.34×99+2.34(3) 5.4÷2.7×0.8(4)132×101(5) 6.25÷1.25÷0.8(6) 2.5×16.(7) 6.33×101﹣6.33 (8) 1.56×1.7+0.44×1.7(9) 1.8×[(3.41﹣2.9)÷0.03] (10)0.125×32×2.5.(11) 1.258×18.5﹣0.258×18.5(12)8.48÷0.8×0.9 (13) 1.25×2.4(14) 5.85÷(1.3+0.5)×6.(15)17.17﹣6.8﹣3.2﹣6.17(16) 5.4×[(1.3+2.15)÷0.2] (17)8.4÷0.6+8.4÷0.4(18)16.8×10.1(19)10.9﹣0.9÷0.2+1.8(20) 1.25×3.2×0.25.(21) 1.36+4.85+2.64+6.15 (22)98.5÷2.5÷4 (23) 5.4÷[2.5×(3.7﹣2.9)] (24)0.8×(4﹣3.68)÷0.01(25)83.7﹣12.83﹣0.17 (26) 5.96+13×(3.2﹣3.12)(27) 4.32÷2.4×1.7;(28)16.2×4.5+3.8×4.5;(29)9.05﹣3.86﹣3.14;(30)7.28+0.72÷0.9(31) 4.32+5.43+6.68(32)17.17﹣6.8﹣3.2(33) 5.29×9+5.29(34)16.8×10.1(35) 2.74×9.5+5×0.274(36)0.36+9.6÷3.2.(37) 3.75×25+6.25×25 (38)25.46﹣8.23﹣1.76(39) 2.9+7.1×10(40) 1.25×32×0.25.(41)15.68﹣(7.78﹣4.32)﹣2.32 (42)0.25×3.2×1.25(43)9.99×1.01(44) 4.63×1.4+46.3×0.86(45)17.5÷0.8÷12.5(46)0.9+9.9+99.9+999.9.(47) 2.9×99+2.9(48)25×11.2×4(49)23.25﹣6.75﹣3.25.(50)125×3.2×2.5(51) 3.6×10.1(52) 5.8×2.7+0.58×73(53) 3.6+6.4×1.8(54)(1.48+3.02)÷(3.6×0.5)(55)(36.7﹣4.9)×101﹣31.8.(56) 6.33×101﹣6.33(57)35.6﹣5×1.73(58) 1.6×55.4﹣55.4×0.6 (59)17.68÷5.2+2.7×1.5.(60) 1.08×0.8÷0.27(61)102×0.45(62)22.78÷1.25÷0.8(63)0.34×101﹣0.34.(64)0.125×32×2.5(65)0.8×6.3﹣0.8×3.8(66)504÷3.2×2.08(67)(20﹣0.8×9)×5.7(68) 2.4×1.5+3.6÷1.5(69)7.38﹣5.14+3.62﹣2.86(70)0.12×1.8+8.2×0.12(71) 5.4÷[0.51÷(1.2﹣1.03)](72)[(8.1﹣5.6)×0.9﹣1.05]÷0.04.(73)10.8﹣0.8÷(0.35+0.05)(74)8×[1÷(2.3﹣2.25)](75) 2.64×9.9+0.264(76) 4.52+0.61+1.39+6.48(77) 4.27﹣(1.96﹣1.73)(78)(294.4﹣19.2×6)÷(6+8)(79)12.5×0.76×0.4×8×2.5.(80) 4.98+8.02×2.5(81)60.8﹣40.8÷2.5(82)0.8×69.6×12.5(83) 4.98×99+4.9(84) 6.48÷3.2÷2.5(85) 1.2×7.6+7.6×6.8.(86)(9.4﹣5.8)×2.07(87)12.54﹣4.56﹣3.44﹣1.54(88)(9.36×5+9.36+9.36×2)×1.25 (89)7.236÷0.18﹣14.3×0.02.(90)9.6÷0.4×0.25(91)29.7÷(5.85÷0.65)(92)7.4×9.9(93) 3.84﹣2.7×0.64(94)8.68﹣8.68÷0.56×0.5 (95) 4.7×4.7+4.7+4.3×4.7.(96) 2.72÷[(8.2﹣6.5)×0.5];(97)9.12+9.12×9﹣60.2;(98)28.4÷0.4÷0.25;(99)27.36﹣27.36÷7.6.(100) 3.25×0.45+6.75×0.45 (101) 31.5﹣24.5÷3.5(102) 7.5×102(103) 6.3+3.7×2.8.(104) 2.15+8.73+1.27+7.85 (105) 11.87﹣(8.2+1.87)(106) 5.42﹣3.87﹣1.13 (107) 4.38﹣1.56+0.62﹣0.44 (108) 0.4×270×2.(109)(40+1.25)×8(110)(12.5﹣0.05)×8 (111) 2.6×8.5+8.5×7.4 (112) 9.9×6.9﹣6.9×3.9 (113) 5.6×99+5.6(114) 2.5×(1.9+1.9+1.9+1.9)(115) 7.2÷1.25÷8.(116) 52.4﹣(15+0.6)÷1.6(117) 9.87×99+9.87(118) 46.8÷0.9÷0.4(119) 5.5×17.3+6.7×5.5.(120) 99×4.2+4.2(121) 0.25×1.25×3.2(122) 6.4×14+15×6.4+6.4(123)(1.3+1.3×0.125×8)÷(80﹣77.4)(124) 4×(25+2.5+0.25)÷111(125) 6.25÷〔(17.2﹣3.6×4.5)÷0.32〕(126) 28.4×99+28.4(127) 0.94×2.5﹣0.45(128) 4×0.8×12.5×2.5(129) 17.5÷0.25×17+13.(130) 10.1×87(131) 2.3+3.19÷(22﹣19.8)(132) 1.25×7.2.(133) 9.1﹣1.2÷6﹣6.24(134) 7.3+12.8﹣3.8×2.3(135)(5.36+7.64)÷13×100 (136) 7.575÷[(5.63﹣1.88)×0.2].(137) 7.5﹣(5.5+1.24)(138) 0.26+15.68+9.74+2.32(139) 13.26+9.55﹣3.26(140) 6.1+3.9﹣6.1+3.9.(141) 31.7÷0.63(保留2位小数)(142) 2.4×1.5+3.6÷1.5(143) 0.32×0.25+0.08÷4(144)(9.6+1.48÷3.7)÷8(145) 5.8÷[4×(1.34﹣0.14)](146) 5.4÷[0.51÷(1.2﹣1.03)].(147) 21.35﹣3.25﹣16.75 (148) 33.02﹣(148.4﹣90.85)÷2.5(149) 32×2.5×0.125 (150) 18.1+(3﹣0.299÷0.23)×1.(151) 67﹣(2.98+0.67)(152) 8×16﹣73.8×6(153) (45+14)÷73+710.(154) 13.7×0.125×8(155) 0.8×[13﹣(3.12+5.28)] (156) 102×0.56(157) 1.53×1.7+0.47×1.7.(158) 5.18+0.73+0.82(159) 0.75×1.8÷1.5(160) 12.5×7.1×0.8(161) 6.12×99+6.12(162) 8.6÷0.86+8×0.35 (163) 5.6×(18.5﹣8.5÷0.5)(164) 0.125×4.78×80(165) 2.8×3.6+1.4×2.8 (166) (0.4+40)×2.5(167) 78.7﹣17.7×3.6 (168) 18÷[0.3×(8﹣6.5)] (169) 12.7+12.5+0.5.(170) 91÷2.6÷0.05=(171) 6.3×3.7+6.3×6.3=(172) (3.7+1.7×0.4)÷2.5= (173) 7.28+3.2÷2.5=(174) 0.74+0.9×7.4=(175) 7.8÷0.125÷0.8=(176) 37.5÷[0.3×(1.34﹣0.84)] (177) (2.5+27.75÷1.5)×1.6.(178) 6.21﹣3.8+2.2(179) 6.03+3.7+2.97(180) 17.43﹣6.57﹣2.43(181) 20.47﹣(1.47+6.8)(182) 13.26+4.71+3.47+5.29 (183) 22.74+8.68﹣13.74.(184) 10÷0.2÷2.5(185) 64×4.5+3.6×45(186) 1.25×3.2×0.8(187) 14.5×102(188) 14.64+3.7×2.8(189) 8.4÷0.21÷0.5.(190) 0.125×9×8×0.3(191) 4.62÷5÷0.66(192) 5.78×2.3+5.78+5.78×6.7 (193) 7.75×[20÷(3.24﹣3.04)].(194) 1.25×0.5×8×0.2(195) 0.97×9+0.97(196) 5.4÷[3×﹙3.8﹣2.9﹚].(197) 0.4×(3.2﹣0.8)÷0.15 (198) 5.7+1.9×0.2÷7.6(199) 32.4×6.3+32.4×3.7 (200) 18.2﹣10.6×(0.9﹣0.75)(201) 0.25×3.85×40 (202) 1.46×3.5+3.5×4.54.(203) 7×12.5×0.8(204) 4.7×3.6+4.7×6.4(205) 1.45×[(2.8+4.4)÷2.4].(206) 4.2×(6.18﹣3.03)+6.3 (207) 15.02﹣6.8﹣(1.02+1.2 )(208) 0.6×[(5﹣0.68)÷1.2](209) 2.7÷4+6.3×0.25(210) (6.02+2.8 )÷0.4﹣2.05 (211) 3.08×3.5+6.2×3.08+3.08×0.3.(212) 2.3+3.91÷(22﹣19.7)(213) 21.6÷[64.8﹣(48.6﹣2.7×2)].(214) 93.6×3.6+1.4×3.6(215) 0.25×0.8×0.125×0.4(216) 2.7×1.5﹣2.7(217) 9.08+5.45+11.92+4.55 (218) 1.25×30×1.2×0.8.(219) 0.6+0.94﹣0.208(220) 4.85×1.25×8(221) (64﹣22.4÷1.4)×1.2 (222) 18.3﹣6.25﹣3.75(223) 2.8×3.6+1.4×2.8 (224) 6.6÷〔14.5﹣(1.7+1.8)〕(225) 0.25×9.87×4 (226) 36.7×2.1+10.8 (227) 8.45﹣0.45×0.1(228) 0.73×102 (229) 7.8×5.6+2.3×4.4 (230) 76.3×27﹣76.3×17.(231) 7.05×23.7+7.05×76.3.(232) [(7.6﹣5.2)÷0.4+2.54]×32.(233) 17.68÷5.2+2.7×1.5(234) 35.6﹣5×1.73(235) (1.1﹣0.78)×(2.7﹣1.95)(236) 1.3×0.75×4(237) 1.08÷1.8×1.2(238) 50.4×1.9﹣1.8(239) 0.82×0.25+1.18×0.25.(240) 8.5×[(2.36+2.42)÷0.25] (241) 3.9÷[(1.3+0.6)×6﹣3.6] (242) 4.25×6.3+3.7×4.25(243) 205×0.99(244) 25.6﹣7.49﹣2.51 (245) [2.5﹣(6.8﹣4.9)]×0.8.(246) 102×4.5(247) 3.4÷[(1.2+0.5)×5](248) 8×(20﹣1.25)(249) 0.654+10.9×6.5(250) 22.7×1.25×0.8(251) 3.91×2.8+6.09×2.8.(252) 6.23+3.09=(253) 132.4﹣59.8=(254) 6.62×0.84=(255) 2.07÷0.023=(256) [20.026﹣(8.6+9.7)×0.92]÷30.19.(257) 0.125×32×2.5(258) 0.8×6.3﹣0.8×3.8(259) 50.4÷3.2×2.08(260) 204÷(3.4×0.5)(261) (43.26+2.34)÷7.5(262) (20﹣0.8×9)×5.7.(263) 13.25﹣0.8+1.75﹣1.2;(264) 2.5×99+2.5;(265) 10.36+4.8﹣16.5÷5;(266) 12.5×2.4.(267) 38.78﹣19.59+41.22﹣30.41 (268) 2.74×4.86+4.86×6.26+4.86(269) 0.08×(12.5+2.5)×0.1 (270) 25.92+(10.1﹣14.5×0.2)(271) 0.487×12.5÷48.7(272) (8.16+2.09)÷[(10.3﹣9.3)÷0.4].(273) 1.56×1.7+0.44×1.7(274) 12.5×(7.2﹣1.9)×0.8(275) 0.25×2010+20.10×75(276) 30.8÷[(6.34﹣4.59)×4].后记亲爱的朋友,你好!非常荣幸和你相遇,很乐意为您服务。
五年级小数混合简便运算练习题100道
五年级小数混合简便运算练习题100道1)6.9+4.8+3.1 0.456+6.22+3.715.89+2)4.02+5.4+0.983)3.68+7.56-2.684)3.82+2.9+0.18+9.15)5.27+2.86-0.66+1.636)47.8-7.45+8.87)66.86-8.66-1.348)3.6×1025.17-1.8-3..85+2.34-0.85+4.669.6+4.8-3.13.35-4.68+2.0.398+0.36+3.640.25×16.2×4.72×3.5+6.28×3.513.75-35.6-1.8-15.6-7.27.14-0.53-2.4773.8-1.64-13.8-5.3615.75+3.59-0.59+14.25×836.8-3.9-6.19)28.6×101-28.6.8×7.8+78×0.522+4.9-0.9 10)4.8×100.1.5×9.9+56.57.09×10.8-0.8×7.0911)25.48-13)5.6÷3.514)17.8÷15)15.2÷0.25÷416)3.83×4.56+3.83×5.4417)27.5×3.7-7.5×3..2÷3..52÷2.5÷0.49.6÷0.8÷0.0.49÷1.0.89×100.1 .36×12.5×8.54÷2.5÷0.420÷1. 25÷83.9-4.1+6.1-5.94.2×99+4.21.25×2.5×3146.5-9.7×99+9.70.65×10118)÷8÷0.1253.14×0.68+31.4×0.03.6÷1.25÷0.8÷2.5÷0.419)7.2×0.2+2.4×1.420)3.9×2.7+3.9×7.321)21×-5.622)2.3×16+2.3×23+2.323)46×57+23×8624)101×0.87-0.91×878.9×1.0118-1.8÷0.125÷0.815.02-6.8-1.0.43-13.7×0.25-3.7÷10.7×16.1-15.1×10..93+0.19+2.81 .74×+1.5×2.2612.7×9.9+1.275.4×11-5.43.65×4.7-36.5×0.32.22×9.9+6.66×6.0.79×1991.76+0.195+3.2426)2.35+1.713+0.287+7.651.57+0.245+7.6.02+3.6+1.9827)0.134+2.66+0.86 1.27+3.9+0.73+16.1 .5+4.9-6.528)3.07-0.38-1.6229)3.25+1.79-0.59+1.7530)3.2+0.36+4.8+1.6431)12.7-32)7.6×0.8+0.2×7.633)1.28×8.6+0.72×8.634)0.8×1.29+3.7+2.71+6.323.4-0.8-13.4-7. 1.23+ 3.4-0.23+ 6.6.54- 1.76- 4.50.85×1912.5×0.96×0.83.12+3.12×9-2.45-1.550.32×4030.25×360.25×0.73×40.25×8.5×410.4-9.6×0.35加减乘除混合运算运算顺序总结:乘加:在乘加混合运算中,如果没有括号,先算乘法,再算加法。
小数四则混合简便运算练习题100道
小数四则混合简便运算练习题100道二、1、口算:3.6+.= 10-.= .× 0.2=7.8÷=1÷=.5÷0.= .8- = 0÷27.9=6.×0.2= 0.1×0.5= 13.2+6.8= 0.15÷15= +3.8=9-4.5= 0.42×3= 11+0.92=4÷5= 1.8÷0.03=5÷2.5= 0×25.4= 0.125×1.8= .24—2.4= 17.2÷17.2= 0.99×0.1= 2、口算:说出下列算式根据什么定律,性质进行简算。
7.5-0.26-1.74+2. 0.25×13× 18-2.7-9.332×0.12.5×3+3.5×74.5×20-3.5×203、说出下列个题的运算顺序。
82.3-40.5÷0.81×1.24.53+19.8÷÷ [1-0.98×]÷215-6×1. ÷2.55、口头列式。
4.除与 1.的和,商是多少?0.乘以.与.的差,积是多少?个.除 1,商是多少?三、把下列的分步算式改写成综合算式。
7.8-2.9=4.91-0.8=0.24.9×0.8=3.921.2÷0.2=69.15+3.92=13.0718-6=240.5×24=12四、计算:0.4×÷1.×〔÷6.05〕7.4×1.3-4.68÷0. [10-]×0.01五、只列式不计算3.加上 1.的倍,再减去.8,差是多少?3.加上 1.的和,再减去.8的差被除,商是多少?7.乘以除.的商,所得的积加上.,和是多少?34.8与2.7的和乘以4.02,积是多少 ?335.7除以0.7的商,加上12.5与4.8的积,和是多少? 310.2减去2.5的差,除以0.3与2的积,商是多少?七、应用题1、水稻专业组有两块早稻田。
五年级小数的简便运算
五年级小数的简便运算题题目一:2.5×4.8解析:把 4.8 拆分为4×1.2,先算 2.5×4 = 10,再算10×1.2 = 12。
题目二:1.25×3.2×0.25解析:把 3.2 拆分为8×0.4,原式变为 1.25×8×0.4×0.25,(1.25×8)×(0.4×0.25)=10×0.1 = 1。
题目三:5.6×99解析:把99 变为100 - 1,原式变为 5.6×(100 - 1)=5.6×100 - 5.6×1 = 560 -5.6 = 554.4。
题目四:12.5×0.88解析:把0.88 拆分为8×0.11,原式变为12.5×8×0.11 = 100×0.11 = 11。
题目五:3.6×102解析:把102 变为100 + 2,原式变为 3.6×(100 + 2)=3.6×100 + 3.6×2 = 360 + 7.2 = 367.2。
题目六:4.5×9.8解析:把9.8 变为10 - 0.2,原式变为 4.5×(10 - 0.2)=4.5×10 - 4.5×0.2 = 45 -0.9 = 44.1。
题目七:7.8×2.3 + 2.3×2.2解析:运用乘法分配律,原式变为(7.8 + 2.2)×2.3 = 10×2.3 = 23。
题目八:6.5×3.7 - 3.7×5.5题目九:1.8×101 - 1.8解析:运用乘法分配律,原式变为 1.8×(101 - 1)=1.8×100 = 180。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
五年级小数混合简便运算练习题100道1)6.9+4.8+3.1 0.456+6.22+3.715.89+2)4.02+5.4+0.983)3.68+7.56-2.684)3.82+2.9+0.18+9.15)5.27+2.86-0.66+1.636)47.8-7.45+8.87)66.86-8.66-1.348)3.6×1025.17-1.8-3..85+2.34-0.85+4.669.6+4.8-3.13.35-4.68+2.0.398+0.36+3.640.25×16.2×4.72×3.5+6.28×3.513.75-35.6-1.8-15.6-7.27.14-0.53-2.4773.8-1.64-13.8-5.3615.75+3.59-0.59+14.25×836.8-3.9-6.19)28.6×101-28.6.8×7.8+78×0.522+4.9-0.9 10)4.8×100.1.5×9.9+56.57.09×10.8-0.8×7.0911)25.48-13)5.6÷3.514)17.8÷15)15.2÷0.25÷416)3.83×4.56+3.83×5.4417)27.5×3.7-7.5×3..2÷3..52÷2.5÷0.49.6÷0.8÷0.0.49÷1.0.89×100.1 .36×12.5×8.54÷2.5÷0.420÷1. 25÷83.9-4.1+6.1-5.94.2×99+4.21.25×2.5×3146.5-9.7×99+9.70.65×10118)÷8÷0.1253.14×0.68+31.4×0.03.6÷1.25÷0.8÷2.5÷0.419)7.2×0.2+2.4×1.420)3.9×2.7+3.9×7.321)21×-5.622)2.3×16+2.3×23+2.323)46×57+23×8624)101×0.87-0.91×878.9×1.0118-1.8÷0.125÷0.815.02-6.8-1.0.43-13.7×0.25-3.7÷10.7×16.1-15.1×10..93+0.19+2.81 .74×+1.5×2.2612.7×9.9+1.275.4×11-5.43.65×4.7-36.5×0.32.22×9.9+6.66×6.0.79×1991.76+0.195+3.2426)2.35+1.713+0.287+7.651.57+0.245+7.6.02+3.6+1.9827)0.134+2.66+0.86 1.27+3.9+0.73+16.1 .5+4.9-6.528)3.07-0.38-1.6229)3.25+1.79-0.59+1.7530)3.2+0.36+4.8+1.6431)12.7-32)7.6×0.8+0.2×7.633)1.28×8.6+0.72×8.634)0.8×1.29+3.7+2.71+6.323.4-0.8-13.4-7. 1.23+ 3.4-0.23+ 6.6.54- 1.76- 4.50.85×1912.5×0.96×0.83.12+3.12×9-2.45-1.550.32×4030.25×360.25×0.73×40.25×8.5×410.4-9.6×0.35加减乘除混合运算运算顺序总结:乘加:在乘加混合运算中,如果没有括号,先算乘法,再算加法。
乘减:在乘减混合运算中,如果没有括号,先算乘法,再算减法。
乘加、乘减:在乘加、乘减混合运算中,如果没有括号,先算乘法,再算加、减法。
除加:在除加混合运算中,如果没有括号,先算除法,再算加法。
除减:在除减混合运算中,如果没有括号,先算除法,再算减法。
除加、除减:在除加、除减混合运算中,如果没有括号,先算除法,再算加、减法。
综合:同级运算,从左往右依次计算。
加减乘除混合在一起,先乘除,再加减。
有括号,先算括号里的。
一:计算下面各题。
20-8×2÷420××90 6×38-987÷21196÷4+56×1216×50-36÷÷×÷95÷347+45×2-4160÷5÷ 120-36×4÷18+35二:先说出他们的运算顺序,再计算。
7.5-0.26-1.74+2.0.25×13× 18-2.7-9.332×0.10.4×÷1..4×1.3-4.68÷0.9[10-]×0.012.3-40.5÷0.81×1.2÷[1-0.98×]÷2213.6÷0.8÷0.316.6÷5.5× 1.7乘法运算律乘法交换律:是两个数相乘,交换因数的位置,它们的积不变。
字母表达是a×b×c=a×c×b乘法结合律:若干个数相乘,改变他们的运算顺序,积不变。
字母表达是:×c=a×,乘法分配律:两个数的和同一个数相乘,等于把两个加数分别同这个数相乘,再把两个积加起来,和不变。
字母表达是:a× =a×b+a×c一:简便计算下面各题。
89×99+892×15-5×525×1029×32+89×68125×645×25+75×23.5-2.8-7.255×9958.65-9×125×200÷25÷250÷8×444×12-88125×240.134+2.66+0.866.5+4.9-6.5 3.07-0.38-1.1.29+3.7+2.71+6.8-2.45-1.557.6×0.8+0.2×7.60.85×190.25×8.5×41.28×8.6+0.72×8.12.5×0.96×0.10.4-9.6×0.350.8×3.12+3.12×9928.6×101-28.614-7.32- 2.62.64+8.67+7.36+11.332.31×1.2×0.5×0.9.16×1.5-0.5×9.16.6-3.6×0.5二、计算,有些能简便的要简便计算:33×13-9987×52+87×486.81-4.4+5.19125×2465+320÷860-×12÷25× 4.56- 8×99+820.5-6.3-3.7×0. 0.86×15.7-0.86×14..4×102三、列式计算。
1、72与4的差乘以56与26的和,积是多少?2、11.5比一个数的2倍少2.5,这个数是多少?3、72与14的和乘以54与24的差,积是多少?4、一个数比11的2倍少2.5,这个数是多少?5:3.加上 1.的倍,再减去.8,差是多少?6,3.加上 1.的和,再减去.8的差被除,商是多少? 7,7.乘以除.的商,所得的积加上.,和是多少?8,34.8与2.7的和乘以4.02,积是多少 ?9,335.7除以0.7的商,加上12.5与4.8的积,和是多少?整数小数四则运算一:计算下面各题。
20-8×2÷420××90 6×38-987÷21196÷4+56×1216×50-36÷÷×÷95÷347+45×2-4160÷5÷ 120-36×4÷18+35二:先说出他们的运算顺序,再计算。
7.5-0.26-1.74+2.0.25×13× 18-2.7-9.332×0.10.4×÷1..4×1.3-4.68÷0.9[10-]×0.012.3-40.5÷0.81×1.2÷[1-0.98×]÷2213.6÷0.8÷0.316.6÷5.5× 1.7三、简便计算下面各题。
89×99+892×15-5×525×1029×32+89×68125×645×25+75×23.5-2.8-7.255×9958.65-9×125×200÷25÷250÷8×444×12-88125×240.134+2.66+0.866.5+4.9-6.5 3.07-0.38-1.1.29+3.7+2.71+6.8-2.45-1.557.6×0.8+0.2×7.60.85×190.25×8.5×41.28×8.6+0.72×8.12.5×0.96×0.10.4-9.6×0.350.8×3.12+3.12×9928.6×101-28.614-7.32- 2.62.64+8.67+7.36+11.332.31×1.2×0.5×0.9.16×1.5-0.5×9.16.6-3.6×0.5四、计算,有些能简便的要简便计算:33×13-9987×52+87×486.81-4.4+5.19125×2465+320÷860-×12÷25× 4.56- 8×99+820.5-6.3-3.7×0. 0.86×15.7-0.86×14..4×102五、列式计算。