精品文档五年级小数的简便运算练习题及答案一、口算。24×5＝100－23.56＝1.5×0.4＝0.8×50＝2×25＝8×125＝1－0.48＝.65×1＝0.2×500＝.5×4＝12×16＋8×16＝二、运用运算定律填空。4.8+8.63+5.2+0.5.93+0.19+2.811.76+0.195+3.242.35+1.713+0.287+7.61.57+0.245+7.6.02+3.6+1.980.134+2.66+0.8661.27+3.9+0.73+16.1.5＋4.9－6.53.07－0.38－1.1.29＋3.7＋2.71＋6.8－2.45－1.553.25＋1.79－0.59＋1.7523.4－0.8－13.4－7.0.32×4033.2＋0.36＋4.8＋1.61.23＋3.4－0.23＋6.60.25×3612.7－6.54－1.76－4.540.25×0.73×47.6×0.8＋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＋3.12×9928.6×101－28.6×0.0.86×15.7－0.86×14..4×10214－7.32－2.62.64＋8.67＋7.36＋20161/8精品文档11.332.31×1.2×0.54.02＋5.4＋0.985.17－1.8－3.213.75－3.68＋7.56－2.687.85＋2.34－0.85＋4.66.6－1.8－15.6－7.23.82＋2.9＋0.18＋9.1.6＋4.8－3.67.14－0.53－2.475.27＋2.86－0.66＋1.6313.35－4.68＋2.6547.8－7.45+8.80.398+0.36+3.6415.75+3.59－0.59+14.22.5－73.8－1.64－13.8－5.366.86－8.66－1.340.25×16.2×43.72×3.5＋6.28×3.6.8－3.9－6.15.48－4.8×7.8＋78×0.523.6×1026.4×0.25＋3.6÷432＋4.9－0.94.8－4.8×0.5×84.8×100.1.5×9.9＋56..09×10.8－0.8×7.094.2÷3.5320÷1.25÷818.76×9.9＋18.763.52÷2.5÷0.4.78÷0.2＋3.443.9－4.1＋6.1－5.90.49÷1.1.25×2.5×3.6－0.6×23.65×10.13.6－3.6×0.15.2÷0.25÷45.6÷3.59.6÷0.8÷0.4.2×99＋4.20.89×100.1146.5－17.8÷5.83×2＋4.27÷8÷0.1259.7×99＋9.720162/8精品文档4.36×12.5×15.6×13.1－15.6－15.6×2.10.65×10127.5×3.7－7.5×3.78.54÷2.5÷0..83×4.56＋3.83×5.44×0.9.16×1.5－0.5×9.16.6－3.6×0.54.5÷1..2÷3.30÷0.6÷563.4÷2.5÷0.4.9÷1.4.9÷÷0..5×2.42.7÷450.35×1.25×2×0.82.4×0.9＋0.1×32.15÷0.2570÷15÷4.25÷2.5×9.9＋0.170.125×640.68×101.26×5.7－3.26×0.755.6×99＋55.61.25×213×0.19.625－3.42×5.7＋4.3×3.4.75×11－8.7.9×2120.4×2.1＝○0.4×2.5＝○×25＝×25＋×259.8×124＝×124＝×－×三、两个筑路队，甲队8天修路6.48千米，乙队9天修路10.35千米，先说说哪个队的工作效率高些，再计算一下你说的对不对。四、一个六层塔，每一层点灯的盏数都是它的上一层的3倍，已知最顶层点了2盏灯，求这座塔共点了多少盏灯？20163/8精品文档73.8－1.64－13.8－5.366.86－8.66－1.340.25×16.2×43.72×3.5＋6.28×3.536.8－3.9－6.1.48－4.8×7.8＋78×0.5.6×10232＋4.9－0.94.8－4.8×0.54.8×100.156.5×9.9＋56.54.02＋5.4＋0.9.17－1.8－3.23.68＋7.56－2.68.85＋2.34－0.85＋4.663.82＋2.9＋0.18＋9.1.6＋4.8－3.65.2