小数简便计算经典题型.doc

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1、小数乘法简便运算3.56＋4.54＋6.44＋5.465.03－0.25－1.754.86＋5.24－1.868.13＋(1.87－0.5)23.7－1.6－3.7－8.487.4－(21.25＋17.4)－8.7514.6－9.91.9＋1.99＋1.99919.43－(6.72＋1.43)12.87－1.34－2.662.69－1.35＋3.31－2.655.25＋3.76－2.76＋4.7521.53－(13.64－8.47)7.34＋2.5＋2.66－1.53.25＋1.79－0.59＋1.7521.3－19.90.125×

2、3.69×8(2.5－0.25)×48.59×1010.36×15.7－0.36×13.70.63×19960÷487.73×0.5＋2.27÷24.37＋99×4.3710.1×38.67－3.8678.63×25－0.063×2509.3×10.13.99÷0.125÷8(5.23＋5.23＋5.23＋5.23)×250.25×1.25×0.67×322.49×3.8＋0.249×6254.8－0.3×0.3－3.91(6.4＋48)÷0.82.5×(4＋8)×12.5（12.5－1.25）×85.64＋99×5.642.5×(

3、4.21＋4.21＋8.42)1.25×1.86×32×0.254.34×0.25＋0.25×5.56＋0.025(7.2＋54)÷0.956.34÷2－6.34×0.511.43÷0.8÷12.57.56×1011.25×2.5×(8＋4)