小学数学简便运算练习题
小学数学简便运算练习题
小学数学简便运算练习题Prepared on 21 November 2021小学数学简便运算练习题(13×8)×125 20×(17×5)14×20×5 276×38+276×6225×(40×32)(5×7)×808×14×12 5×6 16×25×5×4 25×13×4 3×12×5 23×4×5 40×7×3×5 25×6×4×5 3475-1999 2843-598 (8×6)×125 4×8×25×125 259+468+741+532 36×25 (15+25)×2 3700-2185-815 12×25 28×25 125×(8+4)25×(8+40) 125×24 25×24 16×25×19 32×125 44×250 125×5620×12×5×3 724-298 25×16 75×25×2×4 345+497 16×(37+12) 48×19+52×1964×125 25×48 (25+7)×4 32+1 44+68+56 847-2974×7×25×360×(15+500) 248+198 435+19998×(125+9) 46×18+54×18(400+16)×5 170×4+80×4 103×56 13×68+13×32(2+4)×155×(20+6) 8×23+8×27 9×6+4×9 6×29+6×71 5×116+5×84(125+12)×8 29×317+317×7199×14 75×99+75 102×36 49×80+80 230-216-184 48×125(25×30)×418×8×1 25×2 125×(8×6) 25×44 4×20×75×567×9+33×94×(25×30)4×(25+150+75) 12×15+12×35 32×25 13×5+41×5+26×55×(18+20)52×98 9×99+99 36×5+36×5 38×99+385×(18×20)31×128-28×31(25+250)×4 (125×125)×8 46×10 130.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×30.8×〔15.5-(3.21+5.79)〕(31.8+3.2×4)÷5 31.5×4÷(6+3)0.64×25×7.8+2.2 2÷2.5+2.5÷2 194-64.8÷1.8×0.936.72÷4.25×9.9 5180-705×6 24÷2.4-2.5×0.8(4121+2389)÷7 671×15-974 469×12+1492405×(3213-3189) 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2]19.4×6.1×2.3 5.67×0.2-0.62 18.1×0.92+3.930.4×0.7×0.25 0.75×102 100-56.230.78+5.436+1 4.07×0.86+9.12.51、89+124+11+26+48 22、875-147-233.25×125×40×8 4 4、147×8+8×535、125×64 66、0.9+1.08+0.92+0.1用简便方法计算①89+124+11+26+48 ②875-147-23 ③147×8+8×53 ④125×64计算下面各题.1.280+840÷24×5 2 2.85×(95-1440÷24)3.58870÷(105+20×2) 4.80400-(4300+870÷15)5.1437×27+27×563 6.81432÷(13×52+78)7.125×(33-1) 8.37.4-(8.6+7.24-6.6)计算:(1)156×107-7729(2)37.85-(7.85+6.4)(3)287×5+96990÷318(4)1554÷[(72-58)×3]脱式计算2800÷ 100+789 (947-599)+76×641.36×(913-276÷23) 2.(93+25×21)×93.507÷13×63+498 4.723-(521+504)÷255.384÷12+23×371 6.(39-21)×(396÷6)(1)156×[(17.7-7.2)÷3](2)[37.85-(7.85+6.4)] ×30(3)28×(5+969.9÷318)(4)81÷[(72-54)×9]57×12-560÷35 848-640÷16×12 960÷(1500-32×45)704×25[192-(54+38)]×67 138×25×4(13×125)×(3×8) (12+24+80)×5025×32×125 32×(25+125) 178×101-178 84×36+64×8475×99+2×75 83×102-83×2 98×199123×18-123×3+85×123 50×(34×4)×3 25×(24+16)178×99+17879×42+79+79×57 7300÷25÷4 8100÷4÷75 75×27+19×2 531×870+13×310 4×(25×65+25×28) 138×25×4 (13×125)×(3×8) (12+24+80)×50 25×32×125 32×(25+125) 102×76 58×98178×101-178 84×36+64×84 75×99+2×75 83×102-83×298×199 123×18-123×3+85×123 50×(34×4)×3 25×(24+16)178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷7517×40= 100-63= 3.2+1.68= 2.8×0.4=14-7.4= 1.92÷0.04=0.32×500= 0.65+4.35=10-5.4=4÷20= 3.5×200= 1.5-0.06=0.75÷15=0.4×0.8=4×0.25= 0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 +1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6-1/3 =0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=4.9×0.7=1÷5=6÷12= 0.87-0.49=17×40= 100-63= 3.2+1.68= 2.8×0.4=14-7.4=1.92÷0.04=0.32×500= 0.65+4.35=10-5.4=4÷20= 3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25= 0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 -1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=4.9×0.7=1÷5=6÷12= 0.87-0.49158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×50704×2525×32×12532×(25+125)88×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷7516800÷12030100÷210032000÷40049700÷7001248÷243150÷154800÷2521500÷125附加题:2356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3109999+99.99+999.9+9.999 5.4÷1.8+240×1.5 9000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065138×25×4(13×125)×(3×8)(12+24+80)×5025×32×125 32×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+138375+219+381+2255001-247-1021-232 (181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-10652357-183-317-3572365-1086-214138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷752356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3104×(25×65+25×28)2.73 + 0.89 + 1.274.37 + 0.28 + 1.63 +5.72 10 - 0.432 - 2.5689.3 - 5.26 - 2.7413.4-(3.4+5.2)14.9-(5.2+4.9)18.32 - 5.47 - 4.3217.29 - 5.28 - 6.2925 × 6.8 × 0.040.25 × 32 × 0.1256.4 × 1.25 × 12.53.28 × 5.7 +6.72 × 5.72.1 × 99 + 2.11.7 × 9.9 + 0.1723 × 0.1 + 2.3 × 9.90.18 +4.26 -0.18 +4.260.58 ×1.3 ÷ 0.58 ×1.37.3 ÷4 + 2.7 × 0.253.75 × 0.5 -2.75 ÷ 25.26 × 0.125 + 2.74 ÷ 89.5 ÷(1.9 × 8)12.8 ÷ (0.4 × 1.6)930 ÷ 0.6 ÷563.4 ÷ 2.5 ÷ 0.4(7.7 + 1.54)÷ 0.7(11.7 + 9.9)÷ 0.96.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.6635.6-1.8-15.6-7.213.75-(3.75+6.48)47.8-7.45+2.5566.86-8.66-1.340.25×16.2×40. 25×32 ×0.1252 .5 ×(4 +0.4)(1.25-0.125)×856.5×9.9+56.55.4×11-5.43.83×4.56+3.83×5.447.09×10.8-0.8×7.093.65×4.7-36.5×0.3713.7×0.25-3.7÷410.7×16.1-1.1×10.7 +10.7 ×53.9÷(1.3×5)63.4÷2.5÷0.41.2+8.9+0.12+1.14×(25×65+25×28)5.7-1.8= 2) 99×84= 3) 1.02×4= 4) 7.34-4=0.45÷0.15= 6) 800×0.03= 7) 3.27-1.27+4.9= 8) 11×25=0.14×50= 10) 0.81÷0.27= 11) 0.24×0.5= 12) 18.2+1.1.5×3= 14)0.16×30= 15) 5.38+0.45+1.55= 16) 0.56÷0.8=3.6÷0.09= 18) 800×0.03= 19) 200×0.16= 20) 279÷300=0.56÷0.07= 22) 1.5×3= 23) 0.42×3= 24) 46.7-3.8=5.2÷13= 26) 7.34-4= 27) 4.8÷0.3= 28) 0.65×100=5.7-1.8= 30) 4.3÷0.5= 31) 200×0.16= 32) 0.83÷0.1=1.6÷2= 34) 5.4×400= 35)0.14×50= 36) 10-4.18= 8÷0.01÷400= 38) 0.83÷0.1= 39) 0.35+1.45= 40) 800×0.03=0.24×0.5= 42) 1.54+0.7= 43) 2.4+8.06= 44)3.14+1.36=0.65×100= 46) 1.6÷2= 47) 9.6÷0.8= 48) 2.4÷0.8=2.79÷3= 50) 7-0.23= 51) 1.5×0.5= 52) 0.42÷0.7÷0.6=60×0.8= 54) 7÷3.5= 55) 3.27-1.27+4.9= 56) 8×1.03=0.85×4= 46) 4.5+6.3= 47) 0.7×1.2= 48)2.5×0.4=5.4÷1.8+240×1.59000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+2 70)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)1 78×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+138375+219+3 81+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+2 70)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-10652357-183-317-3572365-1086-214138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷752356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×3104×(25×65+25×28)2.73 + 0.89 + 1.274.37 + 0.28 +1.63 + 5.7210 - 0.432 -2.5689.3 - 5.26 - 2.7413.4-(3.4+5.2)14.9-(5.2+4.9)18.32 - 5.47 - 4.3217.29 - 5.28 -6.2925 × 6.8 × 0.040.25 × 32 × 0.1256.4 × 1.25 × 12.53.28 × 5.7 + 6.72 × 5.72.1 × 99 +2.11.7 × 9.9 +0.1723 × 0.1 + 2.3 × 9.90.18 +4.26 -0.18 +4.260.58 ×1.3 ÷ 0.58 ×1.37.3 ÷4 + 2.7 × 0.253.75 × 0.5 - 2.75 ÷ 25.26 × 0.125 + 2.74 ÷ 89.5 ÷(1.9 × 8)12.8 ÷ (0.4 × 1.6)930 ÷ 0.6 ÷563.4 ÷ 2.5 ÷ 0.4(7.7 + 1.54)÷ 0.7(11.7 + 9.9)÷ 0.96.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.6635.6-1.8-15.6-7.213.75-(3.75+6.48)47.8-7.45+2.5566.86-8.66-1.340.25×16.2×40. 25×32 ×0.1252 .5 ×(4 +0.4)(1.25-0.125)×856.5×9.9+56.55.4×11-5.43.83×4.56+3.83×5.447.09×10.8-0.8×7.093.65×4.7-36.5×0.3713.7×0.25-3.7÷410.7×16.1-1.1×10.7 +10.7 ×53.9÷(1.3×5)63.4÷2.5÷0.4(7.7+1.4)÷0.718 ÷ (2+9)57.26-(5.26-1.5)得分158+262+138 375+219+381+225 5001-247-1021-232(181+2564)+2719 378+44+114+242+222 276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+999997755-(2187+755) 2214+638+286 3065-738-1065899+344 2357-183-317-357 2365-1086-214497-299 2370+1995 3999+4981883-398 12×25 75×24138×25×4 (13×125)×(3×8) (12+24+80)×50简便计算练习题2姓名得分704×25 25×32×12532×(25+125)88×125 102×76 58×98178×101-178 84×36+64×8475×99+2×7583×102-83×2 98×199 123×18-123×3+85×12350×(34×4)×3 25×(24+16)178×99+17879×42+79+79×57 7300÷25÷4 8100÷4÷7516800÷120 30100÷2100 32000÷40021500÷12549700÷700 1248÷24 3150÷15 4800÷25 简便计算练习题3姓名得分2356-(1356-721)1235-(1780-1665)75×27+19×2531×870+13×310 4×(25×65+25×28)第一种(300+6)x1225x(4+8) 125x(35+8) (13+24)x8第二种84x101 504x25 78x102 25x204第三种99x64 99x16638x99 999x99第四种99X13+1325+199X25 32X16+14X3278X4+78X3+78X3第五种125X32X825X32X125 88X125 72X125简便计算练习题4姓名得分第六种3600÷25÷4 8100÷4÷753000÷125÷8 1250÷25÷5第七种1200-624-762100-728-772273-73-27 847-527-273第八种278+463+22+37 732+580+2681034+780320+102425+14+186第九种214-(86+14) 787-(87-29)365-(65+118)455-(155+230)第十种576-285+85 825-657+57 690-177+77 755-287+87第十一种871-299 157-99 363-199 968-599第十二种178X101-17883X102-83X217X23-23X735X127-35X16-11X35简便计算练习题5姓名得分容易出错类型(共五种类型)600-60÷1520X4÷20X4736-35X20 25X4÷25X498-18X5+2556X8÷56X8280-80÷ 412X6÷12X6175-75÷2525X8÷25X880-20X2+6036X9÷36X936-36÷6-625X8÷(25X8)100+45-100+4515X97+3100+1-100+148X99+11000+8-1000+8 5+95X28102+1-102+1 65+35X1325+75-25+75 40+360÷20-1013+24X8 672-36+64324-68+32100-36+64简便计算练习题6姓名得分26×39+61×26 356×9-56×9 99×55+55 78×101-78 52×76+47×76+76134×56-134+45×13448×52×2-4×48 25×23×(40+4)999×999+1999184+98 695+202 864-199 738-301380+476+120 (569+468)+(432+131)704×25256-147-53 373-129+29 189-(89+74)28×4×25 125×32×25 9×72×125简便计算练习题7姓名得分720÷16÷5 630÷42 456-(256-36)102×35 98×42 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+99999 7755-(2187+755) 2214+638+2863065-738-1065 899+344 2357-183-317-3572365-1086-214 497-299 2370+1995简便计算练习题8姓名得分3999+498 1883-398 12×25 75×24138×25×4 (13×125)×(3×8)(12+24+80)×50 25×32×125 32×(25+125) 88×125 102×76178×101-178 84×36+64×84 75×99+2×75 98×199 123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+178 79×42+79+79×577300÷25÷4 8100÷4÷75 158+262+138简便计算练习题9姓名得分1248÷24 3150÷15 4800÷25 21500÷125375+219+381+225 5001-247-1021-232 (181+2564)+2719378+44+114+242+222 276+228+353+219 (375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+99999 7755-(2187+755)2214+638+286 3065-738-1065 899+3442357-183-317-357 2365-1086-214 497-2992370+1995 3999+498 1883-398简便计算练习题10姓名得分12×25 75×24 138×25×4 (13×125)×(3×8) (12+24+80)×50 704×25 25×32×125 32×(25+125)88×125 102×76 58×98 178×101-178 84×36+64×8475×99+2×7583×102-83×2 98×199123×18-123×3+85×123 50×(34×4)×3 25×(24+16)178×99+17879×42+79+79×57 21500÷1257300÷25÷4 8100÷4÷75 16800÷120简便计算练习题11姓名得分(a+b)+c = a+(b+c)2.73+0.89+1.27 4.37+0.28+1.63+5.72a-b-c = a-(b+c)10-0.432-2.568 9.3-5.26-2.7414.9-(5.2+4.9)18.32-5.47-4.32(a × b)×c = a ×(b × c)25 × 6.8 × 0.04 0.25 × 32 × 0.125 6.4 × 1.25 × 12.5c ×(a+b)= c×a+c×b0.45 × 201 0.58 × 10.1 50.2 × 99 4.7 × 9.9简便计算练习题12姓名得分3.28 × 5.7+6.72 × 5.7 2.1 × 99+2.123 × 0.1+2.3 × 9.9 0.18+4.26-0.18+4.260.58 ×1.3 ÷ 0.58 ×1.37.3 ÷4+2.7 × 0.25 3.75 × 0.5-2.75 ÷ 2 5.26 × 0.125+2.74 ÷ 8a ÷b ÷c = a ÷(b × c)6.3 ÷ 1.8 9.5 ÷(1.9 × 8)12.8 ÷(0.4 × 1.6)930 ÷ 0.6 ÷5 63.4 ÷ 2.5 ÷ 0.4 (7.7+1.54)÷ 0.7 简便计算练习题13姓名得分6.9+4.8+3.1 15.89+(6.75-5.89) 7.85+2.34-0.85+4.6635.6-1.8-15.6-7.2 13.75-(3.75+6.48) 47.8-7.45+2.5566.86-8.66-1.34 0.25×16.2×4 0.25×32 ×0.125 2 .5 ×(4 +0.4) (1.25-0.125)×8 4.8×100.14.2×99 56.5×9.9+56.5 7.09×10.8-0.8×7.093.83×4.56+3.83×5.44 3.65×4.7-36.5×0.37 5.4×11-5.413.7×0.25-3.7÷4 10.7×16.1-1.1×10.7 +10.7 ×50.7777×0.7+0.1111×5.131.5×24.5+0.8×0.564.23×0.028+0.32×0.20.63×1.05+36×0.568.9×1.1×4.7-2.73.6×9.85-5.46+7.62.8×0.5+1.58+6.58×4.57.4+2.6×4.8+5.20.38+9.62÷3.7×5.4(3.8+0.7)×(22.4-22.4÷4)[(5.84-3.9)÷0.4+0.15]×0.9295.2÷[32.5-(22.08÷4-1.02)]10-(0.2+6.37÷0.7)5.4×1.8+28.2÷0.61.25×(6.2-5.9)×80(9-4.1)÷(4.4+2.6)7.35×3.6+6.4×7.3565.7×0.35-0.152.5×(6+9.728÷3.2)35.6-1.8+4.4-7.20.25×3.2×12.57.5÷(1.5+2.5)6.9÷[(0.4+0.5)×0.6]13.7×0.25-3.7÷4(455-12.5×4)÷8.1〔29.7-(6.2+0.85)×4〕÷0.3。
小学数学简便计算练习题(含答案及解答过程)打印版
2255-354-1055
8X125+80X125
1000÷125÷4
1883-898
25x(4+10)
704×25
小学数学简便计算练习题(六)
姓名:时间:得分:
(181+2564)+2719
2356-(1356-721)
175-75÷25
(26+24)x8
84×36+64×84
(175+83×35)
600-60÷15
25X32X8
427+628+373
32000÷800
7300÷25÷4
847-527-273
2255-354-1055
100-36-64
(16+4+80)×50
1883-898
答案:
(一)60×15+60×5=60×(15+5)=60×20=1200
275+119+281+125=(275+125)+(119+281)=400+400=800
1545-986-14=1545-(986+14)=1545-1000=545
1357-183-317-357=(1357-357)-(183+317)=1000-500=500
1248÷24=1248÷4÷6=312÷6=52
25X127-25X16-11X25
小学数学简便计算练习题(十)
姓名:时间:得分:
95X2+95X28
2150÷25
2370+1995
2999+398
2100-728-772
小学生数学简便运算练习题
小学生数学简便运算练习题习题一:加法运算1. 345 + 227 =2. 710 + 403 =3. 152 + 518 =4. 876 + 249 =5. 441 + 369 =习题二:减法运算1. 520 - 285 =2. 680 - 421 =3. 947 - 586 =4. 721 - 439 =5. 874 - 375 =习题三:乘法运算1. 24 × 7 =2. 14 × 5 =3. 63 × 9 =4. 31 × 4 =5. 56 × 6 =习题四:除法运算1. 48 ÷ 6 =2. 56 ÷ 8 =3. 72 ÷ 9 =4. 35 ÷ 5 =5. 81 ÷ 3 =习题五:综合运算1. 385 + 122 - 146 =2. 670 - 325 + 251 =3. 528 + 234 × 3 =4. (86 - 19) × 5 =5. 312 ÷ (39 - 6) =习题六:填空题1. 201 + 399 = _______2. _______ - 204 = 4383. 476 × _______ = 3,8104. 572 ÷ _______ = 265. _______ × 9 - 487 = 205习题七:解答题1. 小红买了一杯果汁,花了14元。
如果每杯果汁的价格都是6元,她还可以再买多少杯果汁?2. 爸爸做了一块蛋糕,分给4个小朋友吃,每个小朋友分到的蛋糕块数相同。
如果蛋糕总共有28块,每个小朋友分到几块蛋糕?3. 小明刚刚过完生日,他收到了180元的压岁钱。
他决定将压岁钱平均分成6份,每份多少钱?4. 一辆公交车一共有35个座位,如果已经有27个人上车了,还有多少个座位空着?5. 小芳买了3个包子,每个包子的价格是5元。
小学数学简便运算练习题小数除法
小学数学简便运算练习题小数除法题目一:小数除整数的简便运算1. 8.4 ÷ 2 = ?2. 15.6 ÷ 3 = ?3. 26.1 ÷ 5 = ?解答:1. 8.4 ÷ 2 = 4.2解析:我们可以将8.4除以2,得到商为4.2。
2. 15.6 ÷ 3 = 5.2解析:将15.6除以3,得到商为5.2。
3. 26.1 ÷ 5 = 5.22解析:26.1除以5得到商为5.22。
题目二:小数除小数的简便运算1. 2.8 ÷ 0.7 = ?2. 7.5 ÷ 0.3 = ?3. 4.2 ÷ 0.6 = ?解答:1. 2.8 ÷ 0.7 = 4解析:我们将2.8除以0.7,得到商为4。
2. 7.5 ÷ 0.3 = 25解析:将7.5除以0.3,得到商为25。
3. 4.2 ÷ 0.6 = 7解析:4.2除以0.6得到商为7。
题目三:小数除以整数的简便运算1. 4.5 ÷ 9 = ?2. 6.8 ÷ 4 = ?3. 10.2 ÷ 6 = ?解答:1. 4.5 ÷ 9 = 0.5解析:我们将4.5除以9,得到商为0.5。
2. 6.8 ÷ 4 = 1.7解析:将6.8除以4,得到商为1.7。
3. 10.2 ÷ 6 = 1.7解析:10.2除以6得到商为1.7。
题目四:小数除以小数的简便运算1. 3.6 ÷ 1.2 = ?3. 7.8 ÷ 1.3 = ?解答:1. 3.6 ÷ 1.2 = 3解析:我们将3.6除以1.2,得到商为3。
2. 9.3 ÷ 2.1 = 4.4解析:将9.3除以2.1,得到商为4.4。
3. 7.8 ÷ 1.3 = 6解析:7.8除以1.3得到商为6。
题目五:有余数的小数除法1. 4.9 ÷ 1.6 = ? (保留一位小数)2. 6.7 ÷ 4.2 = ? (保留一位小数)3. 8.6 ÷ 2.9 = ? (保留一位小数)解答:1. 4.9 ÷ 1.6 ≈ 3.1解析:我们将4.9除以1.6,得到商约为3.1。
小学数学简便运算练习题
小学数学简便运算练习题(13×8)×125 20×(17×5)14×20×5 276×38+276×62 25×(40×32)(5×7)×80 8×14×125×6 16×25×5×4 25×13×4 3×12×5 23×4×5 40×7×3×5 25×6×4×5 3 475-1999 2843-598 (8×6)×125 4×8×25×125 259+468+741+532 3 6×25 (15+25)×2 3700-2185-815 12×25 28×25 125×(8+4) 25×(8+40) 125×24 25×24 16×25×19 32×125 44×250 125×56 20×12×5×3 724-298 25×16 75×25×2×4 345+497 16×(37+12) 48×19 +52×19 64×125 25×48 (25+7)×4 32+144+68+56 847-2974×7×25×3 60×(15+500) 248+198 435+1999 8×(125+9) 46×18+54×18 (400+16)×5 1 70×4+80×4 103×56 13×68+13×32 (2+4)×15 5×(20+6) 8×23+8×2 7 9×6+4×9 6×29+6×71 5×116+5×84 (125+12)×8 29×31 7+317×71 99×14 75×99+75 102×36 49×80+80 230-216-184 48×125 (25×30)×4 18×8×125×2 125×(8×6) 25×44 4×20×7 5×5 67×9+33×9 4×(25×30) 4×(25+150+75) 12×15+12×35 32×2513×5+41×5+26×5 5×(18+20) 52×98 9×99+99 36×5+36×5 38×99+38 5×(18×20) 31×128-28×31 (25+250)×4 (125×125)×8 46×10130.8÷[14-(9.85+1.07)]??? ????????????? [60-(9.5+28.9)]÷0.18?2.881÷0.43-0.24×3.5????????? ??? 20×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4)???????? 2.55×7.1+2.45×7.1??????? 777×9+1111×3?0.8×〔15.5-(3.21+5.79)〕????(31.8+3.2×4)÷5??? 31.5×4÷(6+3)0.64×25×7.8+2.2 ?????2÷2.5+2.5÷2????? 194-64.8÷1.8×0.936.72÷4.25×9.9????? ?5180-705×6????? 24÷2.4-2.5×0.8(4121+2389)÷7 ???????671×15-974 ??????469×12+1492?405×(3213-3189)??? ??3.416÷(0.016×35)??? 0.8×[(10-6.76)÷1.2]19.4×6.1×2.3???????? 5.67×0.2-0.62?????? ???18.1×0.92+3.93????? 0.4×0.7×0.25??? 0.75×102??????? 100-56.230.78+5.436+1????????????????? 4.07×0.86+9.12.51、89+124+11+26+48 2???????2、?875-147-23?3.25×125×40×8 4???????????? 4、147×8+8×53?5、125×64 6?????????????????? 6、0.9+1.08+0.92+0.1?用简便方法计算①89+124+11+26+48 ?????②875-147-23 ????③147×8+8×53 ????④125×64?计算下面各题.1.280+840÷24×5 2??????? 2.?85×(95-1440÷24)3.58870÷(105+20×2) ?????4.?80400-(4300+870÷15)?5.1437×27+27×563 ??????6.81432÷(13×52+78)7.125×(33-1) ????????????8.37.4-(8.6+7.24-6.6)计算:(1)156×107-7729?(2)37.85-(7.85+6.4)(3)287×5+96990÷318?(4)1554÷[(72-58)×3]脱式计算2800÷ 100+789 ???????????????(947-599)+76×641.36×(913-276÷23) ???????????2.(93+25×21)×93.507÷13×63+498 ????????????4.723-(521+504)÷255.384÷12+23×371??????????? ?6.(39-21)×(396÷6)(1)156×[(17.7-7.2)÷3]?(2)[37.85-(7.85+6.4)] ×30(3)28×(5+969.9÷318)?(4)81÷[(72-54)×9]57×12-560÷35?? ?848-640÷16×12 ??960÷(1500-32×45)???704×25 [192-(54+38)]×67 ?138×25×4?(13×125)×(3×8) ?(12+24+80)×50??? ?25×32×125 ?????32×(25+125) ?? 178×101-178 ????84×36+64×84??? ? 75×99+2×75 ?????83×102-83×2 ??98×199123×18-123×3+85×123 ???50×(34×4)×3 ??25×(24+16)?178×99+178 79×42+79+79×57??? ?7300÷25÷4 ????8100÷4÷75??? ?75×27+19×2 5 31×870+13×310 ??4×(25×65+25×28) ? 138×25×4 ? (13×125)×(3×8) (12+24+80)×50 ?????25×32×125 ?????32×(25+125) ?????102×76 58×98 178×101-178 ????84×36+64×84 ?????75×99+2×75??? ?83×102-83×2 98×199 ????123×18-123×3+85×123 ??50×(34×4)×3 ???25×(24+16)178×99+178 ????79×42+79+79×57 ????7300÷25÷4 ????8100÷4÷7517×40=100-63=3.2+1.68=2.8×0.4=14-7.4=1.92÷0.04=0.32×500=0.65+4.35=10-5.4=4÷20=3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25=0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.51÷17=32.8+19=5.2÷1.3=1.6×0.4=4.9×0.7=1÷5=6÷12=0.87-0.49=17×40=100-63=3.2+1.68=2.8×0.4=14-7.4=1.92÷0.04=0.32×500=0.65+4.35=10-5.4=4÷20=3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25=0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.51÷17=32.8+19=5.2÷1.3=1.6×0.4=4.9×0.7=1÷5=6÷12=0.87-0.49158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×50704×2525×32×12532×(25+125)88×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷7516800÷12030100÷210032000÷40049700÷7001248÷243150÷154800÷2521500÷125附加题:2356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3109999+99.99+999.9+9.999 5.4÷1.8+240×1.5 9000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222 276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+99999 7755-(2187+755)2214+638+2863065-738-1065138×25×4(13×125)×(3×8)(12+24+80)×5025×32×125 32×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+138375+219+381+2255001-247-1021-232 (181+2564)+2719378+44+114+242+222 276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+99999 7755-(2187+755)2214+638+2863065-738-10652357-183-317-3572365-1086-214138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷752356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3104×(25×65+25×28)2.73 +0.89 +1.274.37 +0.28 +1.63 +5.72 10 -0.432 -2.5689.3 -5.26 -2.7413.4-(3.4+5.2)14.9-(5.2+4.9)18.32 -5.47 -4.3217.29 -5.28 -6.2925 × 6.8 × 0.040.25 × 32 × 0.1256.4 × 1.25 × 12.53.28 × 5.7 +6.72 × 5.72.1 × 99 +2.11.7 × 9.9 +0.1723 × 0.1 +2.3 × 9.90.18 +4.26 -0.18 +4.26 0.58 ×1.3 ÷ 0.58 ×1.37.3 ÷4 +2.7 × 0.253.75 × 0.5 -2.75 ÷ 25.26 × 0.125 +2.74 ÷ 8 9.5 ÷(1.9 × 8)12.8 ÷(0.4 × 1.6)930 ÷ 0.6 ÷563.4 ÷ 2.5 ÷ 0.4(7.7 +1.54)÷ 0.7(11.7 +9.9)÷ 0.96.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.6635.6-1.8-15.6-7.213.75-(3.75+6.48)47.8-7.45+2.5566.86-8.66-1.340.25×16.2×40. 25×32 ×0.1252 .5 ×(4 +0.4)(1.25-0.125)×856.5×9.9+56.55.4×11-5.43.83×4.56+3.83×5.447.09×10.8-0.8×7.093.65×4.7-36.5×0.3713.7×0.25-3.7÷410.7×16.1-1.1×10.7 +10.7 ×5 3.9÷(1.3×5)63.4÷2.5÷0.41.2+8.9+0.12+1.14×(25×65+25×28)5.7-1.8= 2) 99×84= 3) 1.02×4= 4) 7.34-4=0.45÷0.15= 6) 800×0.03= 7) 3.27-1.27+4.9= 8) 11×25=0.14×50= 10) 0.81÷0.27= 11) 0.24×0.5= 12) 18.2+1.1.5×3= 14) 0.16×30= 15) 5.38+0.45+1.55= 16) 0.56÷0.8=3.6÷0.09= 18) 800×0.03= 19) 200×0.16= 20) 279÷300=0.56÷0.07= 22) 1.5×3= 23) 0.42×3= 24) 46.7-3.8=5.2÷13= 26) 7.34-4= 27) 4.8÷0.3= 28) 0.65×100=5.7-1.8= 30) 4.3÷0.5= 31) 200×0.16= 32) 0.83÷0.1=1.6÷2= 34) 5.4×400= 35) 0.14×50= 36) 10-4.18= 8÷0.01÷400= 38) 0.83÷0.1= 39) 0.35+1.45= 40) 800×0.03=0.24×0.5= 42) 1.54+0.7= 43) 2.4+8.06= 44) 3.14+1.36=0.65×100= 46) 1.6÷2= 47) 9.6÷0.8= 48) 2.4÷0.8=2.79÷3= 50) 7-0.23= 51) 1.5×0.5= 52) 0.42÷0.7÷0.6=60×0.8= 54) 7÷3.5= 55) 3.27-1.27+4.9= 56) 8×1.03=0.85×4= 46) 4.5+6.3= 47) 0.7×1.2= 48) 2.5×0.4=5.4÷1.8+240×1.59000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+138375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755-(2187+755) 2214+638+2863065-738-10652357-183-317-357 2365-1086-214138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷752356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3104×(25×65+25×28)2.73 +0.89 +1.274.37 +0.28 +1.63 +5.72 10 -0.432 -2.5689.3 -5.26 -2.7413.4-(3.4+5.2)14.9-(5.2+4.9)18.32 -5.47 -4.3217.29 -5.28 -6.2925 × 6.8 × 0.040.25 × 32 × 0.1256.4 × 1.25 × 12.53.28 × 5.7 +6.72 × 5.72.1 × 99 +2.11.7 × 9.9 +0.1723 × 0.1 +2.3 × 9.90.18 +4.26 -0.18 +4.26 0.58 ×1.3 ÷ 0.58 ×1.37.3 ÷4 +2.7 × 0.253.75 × 0.5 -2.75 ÷ 25.26 × 0.125 +2.74 ÷ 89.5 ÷(1.9 × 8)12.8 ÷(0.4 × 1.6)930 ÷ 0.6 ÷563.4 ÷ 2.5 ÷ 0.4(7.7 +1.54)÷ 0.7(11.7 +9.9)÷ 0.96.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.6635.6-1.8-15.6-7.213.75-(3.75+6.48)47.8-7.45+2.5566.86-8.66-1.340.25×16.2×40. 25×32 ×0.1252 .5 ×(4 +0.4)(1.25-0.125)×856.5×9.9+56.55.4×11-5.43.83×4.56+3.83×5.447.09×10.8-0.8×7.093.65×4.7-36.5×0.3713.7×0.25-3.7÷410.7×16.1-1.1×10.7 +10.7 ×53.9÷(1.3×5)63.4÷2.5÷0.4(7.7+1.4)÷0.718 ÷(2+9)57.26-(5.26-1.5)得分 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270) +1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+344 2357-183-317-357 2365-1086-214 497-299 2370+1995 3999+498 1883-398 12×25 75×24 138×25×4 (13×125)×(3×8) (12+24+80)×5 0简便计算练习题2姓名得分 704×25 25×32×125 32×(25+125) 88×125 102×7658×98 178×101-178 84×36+64×84 75×99+2×75 83×102-83×2 98×199 123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75 16800÷120 30100÷2100 32000÷400 21500÷125 49700÷700 1248÷24 3150÷15 4800÷25 简便计算练习题3姓名得分 2356-(1356-721) 1235-(1780-1665) 75×27+19×2 5 31×870+13×310 4×(25×65+25×28) 第一种(300+6)x12 25x(4+8) 125x(35+8) (13+24)x8第二种84x101 504x25 78x102 25x204第三种99x64 99x16 638x99 999x99第四种99X13+13 25+199X25 32X16+14X32 78X4+78X3+78X3第五种125X32X8 25X32X125 88X125 72X125简便计算练习题4姓名得分第六种3600÷25÷4 8100÷4÷75 3000÷125÷8 1250÷25÷5第七种1200-624-76 2100-728-772 273-73-27 847-527-273第八种278+463+22+37 732+580+268 1034+780320+102 425+14+186第九种214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)第十种576-285+85 825-657+57 690-177+77 755-287+87第十一种871-299 157-99 363-199 968-599第十二种178X101-178 83X102-83X2 17X23-23X7 35X127-35X16-11X35简便计算练习题5姓名得分容易出错类型(共五种类型)600-60÷15 20X4÷20X4 736-35X20 25X4÷25X498-18X5+25 56X8÷56X8 280-80÷ 4 12X6÷12X6175-75÷25 25X8÷25X8 80-20X2+60 36X9÷36X936-36÷6-6 25X8÷(25X8) 100+45-100+45 15X97+3100+1-100+1 48X99+1 1000+8-1000+8 5+95X28102+1-102+1 65+35X13 25+75-25+75 40+360÷20-1013+24X8 672-36+64 324-68+32 100-36+64 简便计算练习题6姓名得分 26×39+61×26 356×9-56×9 99×55+55 78×101-78 52×76+47×76+76 134×56-134+45×13448×52×2-4×48 25×23×(40+4) 999×999+1999 184+98 695+202 864-199 738-301380+476+120 (569+468)+(432+131)704×25256-147-53 373-129+29 189-(89+74)28×4×25 125×32×25 9×72×125简便计算练习题7姓名得分 720÷16÷5 630÷42 456-(256-36)102×35 98×42 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+2 70)+1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+344 2357-183-317-357 2365-1086-214 497-299 2370+1995 简便计算练习题8姓名得分 3999+498 1883-398 12×25 75×24 138×25×4 (13×125)×(3×8) (12+24+80)×50 25×32×12 5 32×(25+125) 88×125 102×76 178×101-178 84×36+64×84 75×99+2×75 98×199 123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75 158+262+1 38 简便计算练习题9姓名得分 1248÷24 3150÷15 4800÷25 21500÷125375+219+381+225 5001-247-1021-232 (181+2564)+2719378+44+114+242+222 276+228+353+219 (375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+99999 7755-(2187+755)2214+638+286 3065-738-1065 899+3442357-183-317-357 2365-1086-214 497-2992370+1995 3999+498 1883-398简便计算练习题10姓名得分 12×25 75×24 138×25×4 (13×125)×(3×8)(12+24+80)×50 704×25 25×32×125 32×(25+125)88×125 102×76 58×98 178×101-178 84×36+64×84 75×99+2×75 83×102-83×2 98×199123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+178 79×42+79+79×57 21500÷1257300÷25÷4 8100÷4÷75 16800÷120简便计算练习题11姓名得分(a+b)+ c = a +(b+c)2.73 + 0.89 + 1.27 4.37 + 0.28 + 1.63 + 5.72a-b-c = a -(b+c)10 - 0.432 - 2.568 9.3 - 5.26 - 2.7414.9-(5.2+4.9) 18.32 - 5.47 - 4.32(a × b)×c = a ×(b × c)25 × 6.8 × 0.04 0.25 × 32 × 0.125 6.4 × 1.25 × 12.5c ×(a+b)= c×a + c×b0.45 × 201 0.58 × 10.1 50.2 × 99 4.7 × 9.9简便计算练习题12姓名得分 3.28 × 5.7 + 6.72 × 5.7 2.1 × 99 + 2.123 × 0.1 + 2.3 × 9.9 0.18 +4.26 -0.18 +4.26 0.58 ×1.3 ÷ 0.58 ×1.3 7.3 ÷4 + 2.7 ×0.25 3.75 × 0.5 - 2.75 ÷ 2 5.26 × 0.125 + 2.74 ÷ 8 a ÷ b ÷ c = a ÷(b × c) 6.3 ÷1.8 9.5 ÷(1.9 × 8)12.8 ÷(0.4 × 1.6) 930 ÷ 0.6 ÷5 63.4 ÷ 2.5 ÷ 0.4 (7.7 + 1.54)÷ 0.7 简便计算练习题13姓名得分6.9+4.8+3.1 15.89+(6.75-5.89)7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2 13.75-(3.75+6.48) 47.8-7.45+2.5566.86-8.66-1.34 0.25×16.2×4 0.25×32 ×0.125 2 .5 ×(4 +0.4) (1.25-0.125)×8 4.8×100.14.2×99 56.5×9.9+56.5 7.09×10.8-0.8×7.093.83×4.56+3.83×5.44 3.65×4.7-36.5×0.37 5.4×11-5.413.7×0.25-3.7÷4 10.7×16.1-1.1×10.7 +10.7 ×50.7777×0.7+0.1111×5.131.5×24.5+0.8×0.564.23×0.028+0.32×0.20.63×1.05+36×0.568.9×1.1×4.7-2.73.6×9.85-5.46+7.62.8×0.5+1.58+6.58×4.57.4+2.6×4.8+5.20.38+9.62÷3.7×5.4(3.8+0.7)×(22.4-22.4÷4) [(5.84-3.9)÷0.4+0.15]×0.92 95.2÷[32.5-(22.08÷4-1.02)] 10-(0.2+6.37÷0.7)5.4×1.8+28.2÷0.61.25×(6.2-5.9)×80(9-4.1)÷(4.4+2.6)7.35×3.6+6.4×7.3565.7×0.35-0.152.5×(6+9.728÷3.2)35.6-1.8+4.4-7.20.25×3.2×12.57.5÷(1.5+2.5)6.9÷[(0.4+0.5)×0.6]13.7×0.25-3.7÷4(455-12.5×4)÷8.1〔29.7-(6.2+0.85)×4〕÷0.3。
小学数学简便运算练习题.doc
小学数学简便运算练习题(13×8)×125 20×(17×5)14×20×5 276×38+276×62 25×(40×32)(5×7)×80 8×14×125×6 16×25×5×4 25×13×4 3×12×5 23×4×5 40×7×3×5 25×6×4×5 3475-1999 2843-598 (8×6)×125 4×8×25×125 259+468+741+532 36×25 (15+25)×2 3700-2185-815 12×25 28×25 125×(8+4) 25×(8+40) 125×24 25×24 16×25×19 32×125 44×250 125×56 20×12×5×3 724-298 25×16 75×25×2×4 345+497 16×(37+12) 48×19+52×19 64×125 25×48 (25+7)×4 32+144+68+56 847-2974×7×25×3 60×(15+500) 248+198 435+1999 8×(125+9) 46×18+54×18 (400+16)×5 170×4+80×4 103×56 13×68+13×32 (2+4)×15 5×(20+6) 8×23+8×27 9×6+4×9 6×29+6×71 5×116+5×84 (125+12)×8 29×317+317×71 99×14 75×99+75 102×36 49×80+80 230-216-184 48×125 (25×30)×4 18×8×125×2 125×(8×6) 25×44 4×20×75×5 67×9+33×9 4×(25×30) 4×(25+150+75) 12×15+12×35 32×25 13×5+41×5+26×5 5×(18+20) 52×98 9×99+99 36×5+36×5 38×99+38 5×(18×20) 31×128-28×31 (25+250)×4 (125×125)×8 46×10130.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×30.8×〔15.5-(3.21+5.79)〕(31.8+3.2×4)÷5 31.5×4÷(6+3)0.64×25×7.8+2.2 2÷2.5+2.5÷2 194-64.8÷1.8×0.936.72÷4.25×9.9 5180-705×6 24÷2.4-2.5×0.8(4121+2389)÷7 671×15-974 469×12+1492405×(3213-3189) 3.416÷(0.016×35)0.8×[(10-6.76)÷1.2]19.4×6.1×2.3 5.67×0.2-0.62 18.1×0.92+3.930.0430.24+0.875 0.4×0.7×0.25 0.75×102 100-56.230.78+5.436+1 4.07×0.86+9.12.51、89+124+11+26+48 22、 875-147-233.25×125×40×8 4 4、147×8+8×535、125×64 66、0.9+1.08+0.92+0.1用简便方法计算①89+124+11+26+48 ②875-147-23 ③147×8+8×53 ④125×64计算下面各题.1.280+840÷24×5 2 2. 85×(95-1440÷24)3.58870÷(105+20×2) 4. 80400-(4300+870÷15)5.1437×27+27×563 6.81432÷(13×52+78)7.125×(33-1) 8.37.4-(8.6+7.24-6.6)计算:(1)156×107-7729 (2)37.85-(7.85+6.4)(3)287×5+96990÷318 (4)1554÷[(72-58)×3]脱式计算2800÷100+789 (947-599)+76×641.36×(913-276÷23) 2.(93+25×21)×93.507÷13×63+498 4.723-(521+504)÷255.384÷12+23×371 6.(39-21)×(396÷6)(1)156×[(17.7-7.2)÷3] (2)[37.85-(7.85+6.4)] ×30(3)28×(5+969.9÷318) (4)81÷[(72-54)×9]57×12-560÷35 848-640÷16×12 960÷(1500-32×45) 704×25[192-(54+38)]×67 138×25×4(13×125)×(3×8) (12+24+80)×5025×32×125 32×(25+125) 178×101-178 84×36+64×8475×99+2×75 83×102-83×2 98×199123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+17879×42+79+79×57 7300÷25÷4 8100÷4÷75 75×27+19×2 531×870+13×310 4×(25×65+25×28) 138×25×4 (13×125)×(3×8)(12+24+80)×50 25×32×125 32×(25+125) 102×76 58×98178×101-178 84×36+64×84 75×99+2×75 83×102-83×2 98×199 123×18-123×3+85×123 50×(34×4)×3 25×(24+16)178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷7517×40=100-63=3.2+1.68=2.8×0.4=14-7.4=1.92÷0.04=0.32×500=0.65+4.35=10-5.4=4÷20=3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25=0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.51÷17=32.8+19=5.2÷1.3=1.6×0.4=4.9×0.7=1÷5=6÷12=0.87-0.49=17×40=100-63=3.2+1.68=2.8×0.4=14-7.4=1.92÷0.04=0.32×500=0.65+4.35=10-5.4=4÷20=3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25=0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =0.51÷17=32.8+19=5.2÷1.3=1.6×0.4=4.9×0.7=1÷5=6÷12=0.87-0.49158+262+138375+219+381+2255001-247-1021-232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065899+3442357-183-317-3572365-1086-214497-2992370+19953999+4981883-39812×2575×24138×25×4(13×125)×(3×8)(12+24+80)×50704×2525×32×12532×(25+125)88×125102×7658×98178×101-17884×36+64×8475×99+2×7583×102-83×298×199123×18-123×3+85×12350×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷7516800÷12030100÷210032000÷40049700÷7001248÷243150÷154800÷2521500÷125附加题:2356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3109999+99.99+999.9+9.999 5.4÷1.8+240×1.5 9000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065138×25×4(13×125)×(3×8)(12+24+80)×5025×32×125 32×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+138375+219+381+2255001-247-1021-232 (181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-10652357-183-317-3572365-1086-214138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷752356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3104×(25×65+25×28)2.73 +0.89 +1.274.37 +0.28 +1.63 +5.72 10 -0.432 -2.5689.3 -5.26 -2.7413.4-(3.4+5.2)14.9-(5.2+4.9)18.32 -5.47 -4.3217.29 -5.28 -6.2925 ×6.8 ×0.040.25 ×32 ×0.1256.4 ×1.25 ×12.53.28 ×5.7 +6.72 ×5.7 2.1 ×99 +2.11.7 ×9.9 +0.1723 ×0.1 +2.3 ×9.90.18 +4.26 -0.18 +4.26 0.58 ×1.3 ÷0.58 ×1.37.3 ÷4 +2.7 ×0.253.75 ×0.5 -2.75 ÷2 5.26 ×0.125 +2.74 ÷8 9.5 ÷(1.9 ×8)12.8 ÷(0.4 ×1.6)930 ÷0.6 ÷563.4 ÷2.5 ÷0.4(7.7 +1.54)÷0.7(11.7 +9.9)÷0.96.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.6635.6-1.8-15.6-7.213.75-(3.75+6.48)47.8-7.45+2.5566.86-8.66-1.340.25×16.2×40. 25×32 ×0.1252 .5 ×(4 +0.4)(1.25-0.125)×856.5×9.9+56.55.4×11-5.43.83×4.56+3.83×5.447.09×10.8-0.8×7.093.65×4.7-36.5×0.3713.7×0.25-3.7÷410.7×16.1-1.1×10.7 +10.7 ×53.9÷(1.3×5)63.4÷2.5÷0.41.2+8.9+0.12+1.14×(25×65+25×28)5.7-1.8= 2) 99×84= 3) 1.02×4= 4) 7.34-4=0.45÷0.15= 6) 800×0.03= 7) 3.27-1.27+4.9= 8) 11×25=0.14×50= 10) 0.81÷0.27= 11) 0.24×0.5= 12) 18.2+1.1.5×3= 14) 0.16×30= 15) 5.38+0.45+1.55= 16) 0.56÷0.8=3.6÷0.09= 18) 800×0.03= 19) 200×0.16= 20) 279÷300=0.56÷0.07= 22) 1.5×3= 23) 0.42×3= 24) 46.7-3.8=5.2÷13= 26) 7.34-4= 27) 4.8÷0.3= 28) 0.65×100=5.7-1.8= 30) 4.3÷0.5= 31) 200×0.16= 32) 0.83÷0.1=1.6÷2= 34) 5.4×400= 35) 0.14×50= 36) 10-4.18= 8÷0.01÷400= 38) 0.83÷0.1= 39) 0.35+1.45= 40) 800×0.03=0.24×0.5= 42) 1.54+0.7= 43) 2.4+8.06= 44) 3.14+1.36=0.65×100= 46) 1.6÷2= 47) 9.6÷0.8= 48) 2.4÷0.8=2.79÷3= 50) 7-0.23= 51) 1.5×0.5= 52) 0.42÷0.7÷0.6=60×0.8= 54) 7÷3.5= 55) 3.27-1.27+4.9= 56) 8×1.03=0.85×4= 46) 4.5+6.3= 47) 0.7×1.2= 48) 2.5×0.4=5.4÷1.8+240×1.59000÷72×(1.25×0.7×8)61-(1.25+2.5×0.7)[(10-0.8)+9.85]-2÷0.1253^2*3.256783^3-512+5268.32-2569123+456-52*8789+456-78181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-1065138×25×4(13×125)×(3×8)(12+24+80)×5025×32×125 32×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷75158+262+138375+219+381+2255001-247-1021-232 (181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125) (2130+783+270)+101799+999+9999+999997755-(2187+755)2214+638+2863065-738-10652357-183-317-357 2365-1086-214138×25×4(13×125)×(3×8)(12+24+80)×5025×32×12532×(25+125)178×101-17884×36+64×8475×99+2×7583×102-83×2123×18-123×3+85×123 50×(34×4)×325×(24+16)178×99+17879×42+79+79×577300÷25÷48100÷4÷752356-(1356-721)1235-(1780-1665)75×27+19×2 531×870+13×3104×(25×65+25×28)2.73 +0.89 +1.274.37 +0.28 +1.63 +5.72 10 -0.432 -2.5689.3 -5.26 -2.7413.4-(3.4+5.2)14.9-(5.2+4.9)18.32 -5.47 -4.3217.29 -5.28 -6.2925 ×6.8 ×0.040.25 ×32 ×0.1256.4 ×1.25 ×12.53.28 ×5.7 +6.72 ×5.7 2.1 ×99 +2.11.7 ×9.9 +0.1723 ×0.1 +2.3 ×9.90.18 +4.26 -0.18 +4.26 0.58 ×1.3 ÷0.58 ×1.37.3 ÷4 +2.7 ×0.253.75 ×0.5 -2.75 ÷2 5.26 ×0.125 +2.74 ÷8 9.5 ÷(1.9 ×8)12.8 ÷(0.4 ×1.6)930 ÷0.6 ÷563.4 ÷2.5 ÷0.4(7.7 +1.54)÷0.7(11.7 +9.9)÷0.96.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.6635.6-1.8-15.6-7.213.75-(3.75+6.48)47.8-7.45+2.5566.86-8.66-1.340.25×16.2×40. 25×32 ×0.1252 .5 ×(4 +0.4)(1.25-0.125)×856.5×9.9+56.55.4×11-5.43.83×4.56+3.83×5.447.09×10.8-0.8×7.093.65×4.7-36.5×0.3713.7×0.25-3.7÷410.7×16.1-1.1×10.7 +10.7 ×53.9÷(1.3×5)63.4÷2.5÷0.4(7.7+1.4)÷0.718 ÷(2+9)57.26-(5.26-1.5)得分 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+270)+ 1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+344 2357-183-317-357 2365-1086-214 497-299 2370+1995 3999+498 1883-398 12×25 75×24 138×25×4 (13×125)×(3×8) (12+24+80)×50简便计算练习题2姓名得分 704×25 25×32×125 32×(25+125) 88×125 102×76 58×98 178×101-178 84×36+64×84 75×99+2×75 83×102-83×2 98×199 123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75 16800÷120 30100÷2100 32000÷400 21500÷125 49700÷700 1248÷24 3150÷15 4800÷25 简便计算练习题3姓名得分 2356-(1356-721) 1235-(1780-1665) 75×27+19×2 5 31×870+13×310 4×(25×65+25×28) 第一种(300+6)x12 25x(4+8) 125x(35+8) (13+24)x8第二种84x101 504x25 78x102 25x204第三种99x64 99x16 638x99 999x99第四种99X13+13 25+199X25 32X16+14X32 78X4+78X3+78X3第五种125X32X8 25X32X125 88X125 72X125简便计算练习题4姓名得分第六种3600÷25÷4 8100÷4÷75 3000÷125÷8 1250÷25÷5第七种1200-624-76 2100-728-772 273-73-27 847-527-273第八种278+463+22+37 732+580+268 1034+780320+102 425+14+186第九种214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)第十种576-285+85 825-657+57 690-177+77 755-287+87第十一种871-299 157-99 363-199 968-599第十二种178X101-178 83X102-83X2 17X23-23X7 35X127-35X16-11X35简便计算练习题5姓名得分容易出错类型(共五种类型)600-60÷15 20X4÷20X4 736-35X20 25X4÷25X498-18X5+25 56X8÷56X8 280-80÷ 4 12X6÷12X6175-75÷25 25X8÷25X8 80-20X2+60 36X9÷36X936-36÷6-6 25X8÷(25X8) 100+45-100+45 15X97+3100+1-100+1 48X99+1 1000+8-1000+8 5+95X28102+1-102+1 65+35X13 25+75-25+75 40+360÷20-1013+24X8 672-36+64 324-68+32 100-36+64 简便计算练习题6姓名得分 26×39+61×26 356×9-56×9 99×55+55 78×101-78 52×76+47×76+76 134×56-134+45×13448×52×2-4×48 25×23×(40+4) 999×999+1999 184+98 695+202 864-199 738-301380+476+120 (569+468)+(432+131)704×25256-147-53 373-129+29 189-(89+74)28×4×25 125×32×25 9×72×125简便计算练习题7姓名得分 720÷16÷5 630÷42 456-(256-36)102×35 98×42 158+262+138 375+219+381+225 5001-247-1021-232 (181+2564)+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) (2130+783+27 0)+1017 99+999+9999+99999 7755-(2187+755) 2214+638+286 3065-738-1065 899+344 2357-183-317-357 2365-1086-214 497-299 2370+1995 简便计算练习题8姓名得分 3999+498 1883-398 12×25 75×24 138×25×4 (13×125)×(3×8) (12+24+80)×50 25×32×125 32×(25+125) 88×125 102×76 178×101-178 84×36+64×84 75×99+2×75 98×199 123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75 158+262+138 简便计算练习题9姓名得分 1248÷24 3150÷15 4800÷25 21500÷125375+219+381+225 5001-247-1021-232 (181+2564)+2719378+44+114+242+222 276+228+353+219 (375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+99999 7755-(2187+755)2214+638+286 3065-738-1065 899+3442357-183-317-357 2365-1086-214 497-2992370+1995 3999+498 1883-398简便计算练习题10姓名得分 12×25 75×24 138×25×4 (13×125)×(3×8)(12+24+80)×50 704×25 25×32×125 32×(25+125)88×125 102×76 58×98 178×101-178 84×36+64×84 75×99+2×75 83×102-83×2 98×199123×18-123×3+85×123 50×(34×4)×3 25×(24+16) 178×99+178 79×42+79+79×57 21500÷1257300÷25÷4 8100÷4÷75 16800÷120简便计算练习题11姓名得分(a+b)+ c = a +(b+c)2.73 + 0.89 + 1.27 4.37 + 0.28 + 1.63 + 5.72a-b-c = a -(b+c)10 - 0.432 - 2.568 9.3 - 5.26 - 2.7414.9-(5.2+4.9) 18.32 - 5.47 - 4.32(a ×b)×c = a ×(b ×c)25 ×6.8 ×0.04 0.25 ×32 ×0.125 6.4 ×1.25 ×12.5c ×(a+b)= c×a + c×b0.45 ×201 0.58 ×10.1 50.2 ×99 4.7 ×9.9简便计算练习题12姓名得分 3.28 × 5.7 + 6.72 × 5.7 2.1 ×99 + 2.123 ×0.1 + 2.3 ×9.9 0.18 +4.26 -0.18 +4.26 0.58 ×1.3 ÷0.58 ×1.3 7.3 ÷4 + 2.7 ×0.25 3.75 ×0.5 - 2.75 ÷ 2 5.26 ×0.125 + 2.74 ÷8 a ÷ b ÷c = a ÷(b ×c) 6.3 ÷1.8 9.5 ÷(1.9 ×8)12.8 ÷(0.4 ×1.6) 930 ÷0.6 ÷5 63.4 ÷ 2.5 ÷0.4 (7.7 + 1.54)÷0.7 简便计算练习题13姓名得分6.9+4.8+3.1 15.89+(6.75-5.89)7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2 13.75-(3.75+6.48) 47.8-7.45+2.5566.86-8.66-1.34 0.25×16.2×4 0.25×32 ×0.125 2 .5 ×(4 +0.4) (1.25-0.125)×8 4.8×100.14.2×99 56.5×9.9+56.5 7.09×10.8-0.8×7.093.83×4.56+3.83×5.44 3.65×4.7-36.5×0.37 5.4×11-5.4 13.7×0.25-3.7÷4 10.7×16.1-1.1×10.7 +10.7 ×5一、考试中途应饮葡萄糖水大脑是记忆的场所,脑中有数亿个神经细胞在不停地进行着繁重的活动,大脑细胞活动需要大量能量。
小学数学简便运算大全(四至六年级)
小学数学简便运算大全(四至六年级)小学四至六年级简便运算大全在加法、乘法计算中,如果能凑成整十数、整百数或者整千数,一般应用加法、乘法交换律、结合律来改变运算顺序,使计算简便。
例1:简便计算1) 172+66+134 = (172+134)+66 = 306+66 = 3722) 172+869+128 = (172+128)+869 = 300+869 = 11693) 24+115+76+85 = (24+76)+(115+85) = 100+200 = 300例2:下面计算对吗?如果不对,请改正。
180-72-28 = 180-(72+28) = 80367-(167+33) = 367-167-33 = 167变式探究:简便计算1) 645-(245+257) = 645-502 = 1432) 467-74-26 = 467-100 = 3673) 645-268-32 = 345思想方法总结:a-b-c = a-(b+c)例3:算一算,比一比。
1) 578-285+85 = 3782) 578-(285-85) = 3783) 578-(285+85) = 208变式探究:计算下列各题,怎样简便就怎样计算1) 897-235+35 = 6972) 675-357+157 = 4753) 7829-(829-147) = 677思想方法总结:a-(b-c) = a-b+c例4:简便计算1) 189+206 = 3952) 271+503 = 7743) 384-102 = 2824) 7682-2016 = 5666例5:简便计算1) 4×17×25 = 17002) 125×13×8 =3) 4×125×25×8 =变式探究:简便计算1) 12×25 = 3002) 16×25 = 4003) 4×75×3 = 9004) 75×7×4 = 21005) 16×125 = 20006) 56×125 = 70007) 8×375 = 30008) 625×8 = 5000例6:简便计算1) 32×75 = 24002) 16×75 = 12003) 56×625 =4) 72×375 =5) 375×64 =6) 625×48 =7) 875×32 =8) 88×375 =例7:简便计算1) 748-361+252-139 = 5002) 698-432+502-368 = 4003) 571-453-147+229 = 200变式探究:计算下列各题1) 3274-(1845+274+155) = 10002) 7653-(189+1653+811) = 5000例8:计算下列两题,你有什么简便方法吗?1) 97+98+99+100+101+102+103 = 7002) 1+2+3+4+…+99+100 = 5050巩固练:简便计算1.计算题1.182+765+118=10652.27+139+173+71=4103.978-251-278=4494.681-236-164=2815.572-423+123=2726.72×125=90007.125×56=70008.75×16=12009.24×25=60010.24×125=300011.88×375=12.875×72=13.32×625×25=14.96×375×25=15.256-254+144-146=0创新探究:1.18×45=9×2×45=8102.24×95=12×2×95=22803.102×35=51×2×35=35704.38×15=19×2×15=570总结:通过乘法分配律和乘法结合律,可以简化计算过程,提高计算效率。