小数乘除法简便计算.doc

《小数乘除法简便计算.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、小数简便计算7.25+2.9+0.754.68－3.26－1.7412.8+0.72+7.2+0.280.125×3.69×8(2.5－0.25)×48.59×1010.36×15.7－0.36×13.760÷485.64×1.28＋8.72×5.640.63×1997.73×0.5＋2.27÷24.37＋99×4.3710.1×38.67－3.8678.63×25－0.063×2509.9÷5.59.3×10.13.99÷0.125÷80.99×0.81＋0.11×9×0.1920.68－（8.59+0.68）0.99×4512.5×32×0.250.25×1.25×0.67×32

2、(5.23＋5.23＋5.23＋5.23)×252.49×3.8＋0.249×6233.41÷4－3.41×0.2515×9.754.8－0.3×0.3－3.91(6.4＋48)÷0.82.5×(4＋8)×12.50.25×8×2.12（12.5－1.25）×85.7×18.34－57×0.8343.87×4.12＋5.88×3.878.8÷5.55.64＋99×5.643.25×19920.1×35.22－3.5223.7×1.63－0.37×15.30.88×0.78＋0.11×0.22×0.84.34×0.25＋0.25×5.56＋0.0255.2×20.12.5×(4.21＋

3、4.21＋8.42)(7.2＋54)÷0.91.25×1.86×32×0.2512×19.82.73×0.125＋7.27×0.12556.34÷2－6.34×0.511.43÷0.8÷12.57.56×10121.56－0.4×0.4－3.8480÷321.25×2.5×(8×4)