小数乘除法计算题

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1、小数乘除法计算题乘法：9.46×2.8517.8×6.41.5×4.92.5×0.885.555×5.22.22×3.337.658×8536.02×0.356.78×88.9×2.45.5×559.77×0.021.384×5.18.78×835.6×2.93.77×1.80.02×965.22×0.39.99×0.024.67×0.95×2.441.666×6.19.432×0.0025.6×6.54.88×2.95.61×4.32.6×610.059×0.24.268×1.757×5.7230.4÷621.24÷360.736÷2343.5÷1235.

2、21÷739.6÷24除法：85.44÷1642.84÷7101.7÷967.5÷150.66÷0.311.97÷1.569.6÷2.938.4÷0.815÷0.066.21÷0.03210÷1.451.3÷0.2791.2÷3.80.756÷0.181.25÷1.232÷4214.36÷2.78.33÷6.21.7÷0.032.41÷0.7（循环小数的用简便方法，除不尽保留2位小数）：8.2÷0.120.8÷0.976.4÷5.44.7÷3用竖式计算0.396÷1.2=0.756÷0.36=15.6×13=0.18×15=0.025×14=3.06×36=

3、0.04×0.12＝3.84×2.6≈5.76×3＝（保留一位小数）7.15×2290.75÷3.33.68×0.2516.9÷0.131.55÷3.93.7×0.01613.76×0.8=5.2×0.68.4×1.36.4×0.54.48×0.45.25×535.4×4.20.042×0.540.76×0.320.25×0.0462.52×3.41.08×250.12×0.5×0.16＝4.8×0.25＝0.125×1.4≈（保留两位小数）2.5÷0.7=（保留三位小数）10.1÷3.3=（商用循环小数）10.75÷12.5=（用乘法验算）3.25×9.0

4、4=（用除法验算）3、脱式计算（能简算的要简算）2.5×7.1×416.12×99＋16.125.2×0.9＋0.97.28×99+7.284.3×50×0.264－2.64×0.526×15.7＋15.7×24(2.275＋0.625)×0.283.94+34.3×0.21.2×(9.6÷2.4)÷4.88.9×1.1×4.72.7×5.4×3.93.6×9.85-5.468.05×3.4+7.66.58×4.5×0.92.8×0.5+1.5832＋4.9－0.94.8－4.8×0.5(1.25－0.125)×84.8×100.156.5×99＋56.57

5、.09×10.8－0.8×7.094.85+0.35÷1.48.7×17.4-8.7×7.412.5×0.4×2.5×80.87×3.16+4.649.5×1010.68÷（5.2-3.5）×1.2540.5÷0.81×0.184.8×（15÷2.4）6.81+6.81×990.25×185×404.4×0.8－3.4×0.8(9.37+9．37+9．37+9．37)×2．52.37×6.3+2.37×3.72.5×1.25×0.323.8×10.12.5×(3.8×0.04)7.69×1013.8×10.10.25×39+0.250.125×7246×0.

6、33+54×0.33(8×5.27)×1.256.81+6.81×990.25×185×406.8×0.75÷0.53.75÷0.125–2.751.53+23.4÷7.29.5×9913.5×0.9812.5×8.8二、解方程：54-X=247X=49126÷X=4213+A=28.52.4X=26.47.5x－3x=185×1.3-2x=5.524x+6x=63.65.6x+4.4x=5.2x＋3.86=5.4617.89－x=12.8940.8＋x=57.3x－3.25=162x＋0.82＝8.23＋0.5x＝77.8÷x＝2.680x÷4＝125－0

7、.9x＝2.752x＋0.4x=486－2x＋6x=1835x＋13x=9.60.52×5－4x=0.60.7(x＋0.9)=421.3x＋2.4×3=12.43.5x=1402x+5=4015x+6x=1685x＋1.5=4.513.7—x=5.294.2×3—3x=5.1(写出检验过程)20.5－4x=8.13.6x÷1.2=9.7518×1.5－1.7x=13.418.5x－9.9x=1.7219.2x+1.5x=32.17.2×5－8x=11.24x＋3×0.7＝6.5(口算)0.6×1.2=0.84÷0.6=4.5×0.1=15×0.4=0.1×0

8、.5=2.8÷7=100÷0.01=1.4×3=0.