五年级数学简便计算练习.doc

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1、五年级数学计算练习（2）简便计算。（1）7.3×0.64+0.36×7.349×0.126×81.01×0.990.85×7.5+8.5×0.250.05×3.2×40（2）2.7×3.7+0.37×731.5×1021.25×0.7×0.87.09×10.8—0.8×7.0956.5×99+56.5（3.5+3.5+3.5+3.5）×2.5（3）1.6×1.2517.5×2.3—7.5×2.32.6×8.13+2.6×11.874.87×2.34+48.7×0.2660.99×32（4）5.68÷0.125÷81.68÷0.2÷51.76×

2、99+1.7625×7.5×0.4×20.8×5.6×1.2559×0.28+6.2×5.9+5.9（5）0.99×594.2÷0.25（0.5×12.5）×（2×0.8）7.4÷0.25÷45.8×8.5+5.8×0.5+5.82.5×3.38×4（6）2.5×3.38×417.5÷1.25÷80.35×20123.74×8.6—8.6×13.7452.34÷2.5÷4（7）2.1÷0.5÷0.67.5×36÷7.57.5×46.7+52.3×7.5+7.54.5÷0.8÷0.1254×8×0.25×12.52.016×1999+2.016

3、（8）3.2×988.4×2.77+0.23×8.47.9÷1.25÷84.3×2.5×44.5÷0.8÷0.125（9）6.25×0.23+17.7×0.62525×100.47.23×0.125×8÷72.31.25×8.82.5×（8+0.4）（10）0.25×2.9×4012.95+3.86+6.144.25×3.7+7.3×4.25—4.251.18×2.58+7.42×1.181.25×3.2×2.5（11）（3.7+3.7+3.7+3.7）×2.50.125×4082.36÷2.5÷44.87×1.25×83.7×9.9（12）

4、8.56×7.5+85.6×0.2570.4÷（70.4÷0.25）10.24÷2.5÷49.9÷2.5÷496.51×3.1+3.1×4.49—3.1