简便计算题:80道简便计算题

1.80道简便计算题

7.6×0.8＋0.2×7.6 0.85×199 0.25×8.5×4 1.28×8.6＋0.72×8.6 12.5×0.96×0.8 10.4－9.6×0.35 0.8×（4.3×1.25） 3.12＋3.12×99 28.6×101－28.6 0.86×15.7－0.86×14.7 2.4×102 2.31×1.2×0.5 14－7.32－2.68 2.64＋8.67＋7.36＋11.33 70÷28 （2.5－0.25）×0.4 9.16×1.5－0.5×9.16 3.6－3.6×0.5 4.5÷1.8 4.2÷3.5 930÷0.6÷5 63.4÷2.5÷0.44.9÷1.4 3.9÷（1.3×5） （7.7＋1.54）÷0.7 2.5×2.4 2.7÷4515÷（0.15×0.4） 0.35×1.25×2×0.8 32.4×0.9＋0.1×32.4 15÷0.25 46×57＋23×86 13.7×0.25－3.7÷4 2.22×9.9+6.66×6.7

2.适合4年级学生的20道简便计算题。

1、640÷80=

3.五年级上册数学简便计算30道题及答案

此题利用加法交换结合律，此题先用加法分配律，利用凑整法和减法结合律计算，先利用凑整法把99变换为（100-1），再运用a-b-c=a-(b+c)来简便计算，运用提取公因数的方法，提取公因数2.5，使得运算简便。此题先利用乘法分配律，再利用乘法结合律来简便计算。2.96×40=29.6x4=（30-0.4）x4=30×4+0.4×4=120-1.6=118.46、0.36 x 1.5 - 0.45解析：此题运用乘法分配律，即可提取公因数1.5，再根据乘法结合律进行简便计算。此题先利用加法分配律把46转换成（45+1），(a×b)×c=a×(b×c)使得运算简便。46×44/45=(45+1)×44/45=45×44/45+44/45=44+44/45=44又44/458、1.6×7.5×1.25解析：此题利用乘法分配律把1.6，再利用乘法结合律：进行简便计算。1.6×7.5×1.25=2×0.8×7.5×1.25=（2×7.5）×（0.8×1.25）=15×1=159、0.72×10.1解析：此题先利用加法分配律，再利用乘法结合律使得运算简便。

4.小学四年级简便计算题大全及答案

ok亿童教育五年级上学期递等式计算，能简算的要简算姓名________分数___________________102×0.455.8×（3.87－0.13）+4.2×3.746.3×10.10.85×1995.8×（3.87-0.13）+4.2×3.740.25×367.5＋4.9－6.50.25×8.5×412.5×0.96×0.82.5×3.2×1.250.79×99＋0.7928.6×101－28.60.12×4.8÷0.12×4.870÷287.06×2.4－5.73.6－3.6×0.532.4×0.9＋0.1×32.463.4÷2.5÷0.4五年级上学期递等式计算。

5.小学五年级简便计算题

原发布者:ok亿童教育五年级上学期递等式计算，能简算的要简算姓名________分数___________________102×0.455.8×（3.87－0.13）+4.2×3.746.3×10.10.85×1995.8×（3.87-0.13）+4.2×3.740.25×367.5＋4.9－6.50.25×8.5×412.5×0.96×0.82.5×3.2×1.250.79×99＋0.7928.6×101－28.60.12×4.8÷0.12×4.870÷287.06×2.4－5.73.6－3.6×0.532.4×0.9＋0.1×32.463.4÷2.5÷0.4五年级上学期递等式计算，能简算的要简算姓名________分数___________________0.28×86＋0.72×866.35÷0.8÷1.25930÷0.6÷58－2.45－1.556-1.19×3-0.436.5×（4.8-1.2×4）4.5÷1.895÷（64－45）8.27＋7.52＋1.73－3.5250＋160÷400.75×4×0.25×4 0.15＋0.75×1872＋8÷2.5－30.24.8+8.63+5.2+0.37五年级上学期递等式计算，能简算的要简算姓名________分数___________________1.57+0.245+7.431.23＋3.4－0.23＋6.60.25×0.73×43.07－0.38－1.620.86×15.7－0.86×14.7120－144÷18+353.12

6.有100道脱式简便计算题带答案和过程吗

1. 0.4×125×25×0.8 =（0.4×25）×（125×0.8）=10×100=10002. 1.25×（8+10）=1.25×8+1.25×10 =10+12.5=22.53.9123-（123+8.8）=9123-123-8.8=9000-8.8=8991.24.1.24×8.3+8.3×1.76 =8.3×（1.24+1.76） =8.3×3=24.95.9999×1001=9999×（1000+1）=9999×1000+9999×1=100089996. 14.8×6.3-6.3×6.5＋8.3×3.7=（14.8-6.5）×6.3＋8.3×3.7=8.3×6.3+8.3×3.7=8.3×（6.3＋3.7）=8.3×10=837. 1.24+0.78+8.76=（1.24+8.76）+0.78=10+0.78=10.788. 933-157-43 =933-（157+43） =933-200 =7339. 4821-998=4821-1000+22=382310. 32×125×25=4×8×125×25=（4×25）×（8×125）=100×1000=100000 9048÷26=（2600+2600+2600+1248）÷26=2600÷26+2600÷26+2600÷26+1248÷26=100+100+100+48=34811. 2881÷ 43=（1290+1591）÷ 43=1290÷43+1591÷43=30+37 =67 3.2×42.3×3.75-12.5×0.423×16=3.2×42.3×3.75-1.25×42.3×1.6=42.3×(3.2×3.75-1.25×1.6)=42.3×(4×0.8×3.75-1.25×4×0.4)=42.3×(4×0.4×2×3.75-1.25×4×0.4)=42.3×(4x0.4x7.5-1.25x4x0.4)=42.3×[4×0.4×(7.5-1.25)]=42.3×[4×0.4×6.25]=42.3×(4×2.5) =42312. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15 =13.6513. 6.5×8+3.5×8-47 =52+28-47 =80-47 =33 (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32 =26.7614. 8×7分之4÷[1÷(3.2-2.95)] =8×4/7÷[1÷0.25]=8×4/7÷4 =8/715. 2700×（506－499）÷900 =2700×7÷900 =18900÷900 =2116. 33.02－（148.4－90.85）÷2.5=33.02－57.55÷2.3=33.02－23.02=1017. （1÷1－1）÷5.1 =（1－1）÷5.1 =0÷5.1 =018. 18.1＋（3－0.299÷0.23）×1=18.1＋1.7×1 =18.1＋1.7 =19.819. 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=87520. 61-(1.25+2.5×0.7)=61-3=5821. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=13.0522. 5.4÷1.8+240×1.5=3+360=36323. 9000÷72×(1.25×0.7×8）=9000÷72×7=125×7=87524. 61-(1.25+2.5×0.7)=61-3=5825. [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=3.0526. 408－12×24= 408 - 288= 12027. （46＋28）×60= 74 x 60= 444028. 42×50－17 = 2100- 17 = 208329. 32＋105÷5 = 32 + 21= 5330. 420×（327－238） = 420 x 89 = 3738031. (4121+2389)÷7 = 6510 ÷7 = 93032. 3.416÷（0.016×35） = 3.416 ÷0.56 = 6.133. 0.8×[(10－6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.1634. 5.67×0.2-0.62 = 1.134-0.62 = 0.51435.0.4×0.7×0.25 = 0.4 x 0.2 5 x 0.7 = 0.1 x 0.7 = 0.0736. 0.78+5.436+1 = 6.216 +1 = 7.21637. 30.8÷[14－(9.85＋1.07)]= 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 1038. [60－(9.5＋28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 12039. 2.881÷0.43－0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.8640. 20×[(2.44－1.8)÷0.4＋0.15] = 20x (0.64 ÷0.4 +0.15)= 20x(1.6 +0.15) = 20 x1.75 = 3541. 28-(3.4+1.25×2.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.642. 2.55×7.1+2.45×7.1 = (2.55 + 2.45) x7.1 = 5 x7.1=35.543. 0.8×〔15.5-(3.21+5.79)〕 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.244.（31.8+3.2×4）÷5 = (31.8 + 12.8)÷5 = 44.6÷5 = 8.9245. 31.5×4÷(6+3) = 126 ÷ 9 = 1446. 2÷2.5+2.5÷2 = 0.8 + 1.25 =2.0547. 194－64.8÷1.8×0.9 = 194 -36 x0.9 = 194-32.4 = 161.65180－705×6 = 5180 - 4230=95048. 24÷2.4－2.5×0.8 =10 -2=849. 405×(3213-3189) =405x24 = 972059. 125×(97-81) =125x16 =200060. 6942+480÷3 = 6942 + 160 = 678261. 20+80÷4-20 = 20 + 20 -20 = 40 -20 = 2062. 100÷（32-30）×0 = 100 ÷2 x0= 50 x0 = 063. 25×4-12×5 = 100 - 60 = 4064. 70×〔（42-42）÷18〕=70 x (0÷18) = 70x0 = 065. 75×65+75×35 = 75 x (65 +35) = 75x100 = 750066. 6-1.6÷4= 6- 0.4 = 5.667. 5.38+7.85-5.37= 13.23 - 5.37=7.8668. 7.2÷0.8-1.2×5=9 - 6 =369. 6-1.19×3-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 270. 6.5×（4.8-1.2×4）= 6.5 x(4.8 - 4.8 )=6.5 x0 = 071. 0.68×1.9+0.32×1.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.972. 10.15-10.75×0.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.1573. 5.8×（3.87-0.13）+4.2×3.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.474. 32.52-（6+9.728÷3.2）×2.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.9775.（136+64）×（65-345÷23）= 200x(65-15) = 200x 50=1000076. 0.4×125×25×0.8 =(0.4×25)×(125×0.8)=10×100=100077. 1.25×(8+10) =1.25×8+1.25×10=10+12.5=22.578. 9123-(123+8.8) =9123-123-8.8=9000-8.8=8991.279. 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76)=8.3×3=24.980. 9999×1001 =9999×(1000+1)=9999×1000+9999×1 =1000899981. 14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.782. 8.3×(6.3+3.7) =8.3×10 =8383. 1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.7884. 933-157-43 =933-(157+43)=933-200=73385. 4821-998 =4821-1000+2=382386. I32×125×25 =4×8×125×25 =(4×25)×(8×125)=100×1000 =10000087. 9048÷268=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+2600÷26+1248÷269=100+100+100+48=34888. 2881÷ 43 =(1290+1591)÷ 434=1290÷43+1591÷43=30+3789. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.6590. 6.5×8+3.5×8-47 =52+28-47=80-4791. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.7692. 8×7分之4÷[1÷(3.2-2.95)]=8×4/7÷[1÷0.25]=8×4/7÷4=8/793. 2700×(506-499)÷900 =2700×7÷900 =18900÷900 =2194. 33.02-(148.4-90.85)÷2.5=33.02-57.55÷2.5=33.02-23.02 =1095. (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =096. 18.1+(3-0.299÷0.23)×1=18.1+1.7×1 =18.1+1.7 =19.897. 4.1/27+505/2727+131313/272727 =1/27+5*101/(27*101)+13*10101/(27*10101)=1/27+5/27+13/27=19/2798. 6.5×8+3.5×8-47 =52+28-47=80-4799. (80-9.8)×5分之2-1.32 =70.2X2/5-1.32=28.08-1.32=26.76100. 1.8+18÷1.5-0.5×0.3 =1.8+12-0.15=13.8-0.15=13.65

7.数学简便运算题怎么做？

数学运算法则表1、加减法把两个数合并一个数的运算叫做加法。相加的各个数都叫做加数，加得的数叫做和。4（加数）+3（加数）=7（和）已知两个加数的和与其中一个加数，求另一个加数的运算叫做减法。