小数乘除法练习题(精).doc

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1、小数乘除法练习题一、用竖式计算下列各题（除不尽的保留三位小数）31.5×24.50.8×0.564.23×0.0280.63×1.0534.3÷0.2336×0.560.32÷0.26.728÷3.23.45×84   4.6×25     0.41×56 1.085×3050.076×24     2.3÷5.58.63×0.42  8.63÷0.42 0.38×2.61.24÷1.5　　3.2×1.8　　　0.32÷0.90.38×2.6214×0.372.6×251.06×300.156×15=24÷0.9=720×0.58=302×1.7=2.35×84=28÷0

2、.63=0.094÷0.12=3.04÷7.5=0.125×3.2=0.45÷92.06÷250.56×12324÷0.3716×0.2851.06×300.156×1524×0.9720×0.580.48÷456.32÷210.077×8918÷3.92.08×0.094.25×0.167.34×4.5 0.24×0.254.3×0.0150.067×0.530.56÷0.04527×0.43=1.08÷45=28×3.24=37.5÷6=1.56÷24=54÷36=3.65÷25=24.36÷12=540×0.72=0.125×280=64×2.75=0.039÷15

3、=1.35÷18=0.135÷15=162÷45=68.17÷34=170×0.35=36×3.75=84×0.69=15.45÷75=60.9÷15=0.73×203=2.85×47=5.98÷0.23    19.76÷5.213÷11＝162÷45二、脱式计算（能简算的要简算） 0.125×0.25×8×4    7.4×0.28+0.28×2.6 4.8×0.9+0.48       （4－0.4）×2.52.5×（0.77×0.4）  6.1×3.6＋3.9×3.6 （4+0.4）×2.5　　　　8×7×0.125　　　10－2.3×1.23.9×9.9+0.3

4、9　　　　4.5×1.2＋2.3　　（0.4+1.25）×0.89.4×6.1×2.33.25×4.76－7.818.1×0.92＋3.931.5×1.3×42.7＋3.1＋2.9＋3.21.2×2.5＋0.8×2.50.78×10125÷0.25×668.04÷（0.21×3.6）0.486＋0.01＋3.9919.75÷2.5-3.551.25×11×4×0.817.5×2.3-7.5×2.390÷25÷48.93×5.7＋8.93×3.3＋8.93