小数除法脱式运算+简算260道--含答案.doc

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1、小数除法脱式运算+简算260道一．计算题（共50小题）1．用你喜欢的方法计算．32×12.5×0.256.1×4.2+5.8×6.11.7÷2.5÷0.416.1﹣4.2﹣5.8．3．脱式计算4.8÷（1.2÷0.5）12.8﹣12.8÷571.4÷（7×6）4．用你喜欢的方法计算0.65×101﹣0.6512.6﹣3.25+6.756.35÷0.2÷0.55.7×1.2÷191.25×3.63×0.8．5．我能用喜欢的方法计算下面各题．0.11×1.8+8.2×0.113.5﹣3.5×0.980.75×18÷0.150.25×4.78×8．6．能简算的要

2、简算．17.3÷0.125÷814.72×0.7+5.28×0.73.5÷0.568.5×9.9+0.82．7．递等式计算，有简便运算的用简便方法38.75﹣（24.5+8.75）0.4×2.32×0.250.75×1014.2﹣3.2×0.97.56×99+7.5670.3﹣17.48÷7.63.64÷5.2×23.321.8÷0.8﹣1.2×545÷（5.25÷0.25）16.5×101﹣16.50.96÷0.3×141.25×4×2.5×836.45÷（0.82+3.4×0.2）9.07﹣2.64÷0.41.5×10112.6×7.5+8.313.6

3、×0.85﹣3.6×0.85104×8.586.4÷6.4﹣0.40.25×6.2×0.423×6.5+17×6.536÷0.4×0.25（24.6﹣18.1）×3.47.6×9.9+7.6×0.113.6×0.8×12.523.9×8.5﹣3.9×8.5（2.55+9.6÷16）÷0.429.2÷0.25÷48．脱式计算（能简算的要简算）0.75×4×0.25×49.6+9.9×9915.58÷8.2﹣0.724.536÷0.8÷142.8×3.6+1.4×2.86.3×10.1．9．脱式计算（能简算的要用简算）4.2×7.8+2.2×4.29.5×10

4、1（8×3.82）×1.250.125×720.6×3.9×0.842×0.39+4.2×6.110．脱式计算，能简算的要简算0.25×1.25×1618.9﹣18.9÷1.48.37×1.2﹣8.37×0.243×11.8+5.7×118．11．用简便方法计算．6.2+5.18+2.815.35﹣（5.35+7.2）3.63﹣1.25+17.37﹣8.7551.72﹣8.66﹣1.34．12．脱式计算，能简算的要简算．0.7×101﹣0.70.125×4.95×812.9﹣1.68﹣2.32567÷20÷5．13．用递等式计算，能简算的要简算．20.16

5、÷7.2+9.86.2×2.7+6.5×7.332.8+9.6+7.2．14．脱式计算：能简算的要简算15.89﹣（5.89+6.98）0.25×13.7×0.432.7×28+7.3×2815×9.4﹣424.9+12.87﹣5.380.05×0.7×20×1.7．15．计算下面各题，能简算的要简算．5.04×28（15.4﹣7.8）×3.53.2×4.6+3.2×5.40.25×17.4×420﹣6.72﹣3.288.33+7.45+1.67+2.5516．脱式计算．0.2×0.6×0.5×4（7.5﹣2.3×0.4）÷0.011.2×0.25+2.8

6、×0.25178.8÷（26.4﹣5.6）17．能简算的要简算3.6﹣1.28+3.093.82+2.9+0.18+9.19.43﹣（6.28﹣1.57）21.32﹣（6.32+8.3）13.75﹣（3.75+6.48）15﹣7.35﹣2.6518．混合运算，能简便就简便19.81﹣2.68﹣8.325.6+6.6﹣5.6+6.60.81×27+0.19×27101×0.19﹣0.19．19．用简便方法计算9.08﹣1.76﹣4.2418.38﹣（5.38+1.8）﹣8.217.45﹣（8.76﹣6.55）12.87+3.98﹣3.87．20．脱式计算，能

7、简便的用简便方法计算．10.8÷（3.94+6.86）×0.8　　0.65×201　　12.5×3.9×0.839.8×0.25×437.6×8+37.6×2　　　　0.78×99+0.78．21．脱式计算：21.8﹣7.22﹣2.78　　　　　　　　9﹣0.24÷1.6×1.19.12+9.12×9﹣6.02　　　　　　45.2×66.7+66.7×53.8+66.70.25×0.8×0.125×0.4　　　　　12.75÷[14.6﹣（1.3+8.2）]0.125×36×（4÷0.5）÷36[（6.1﹣4.6）×0.8﹣1]×0.3615.6﹣（4.1

8、+0.2+6.86÷0.7）[5﹣（1﹣1.2×0.8）]÷41÷