五上笔算乘法50题.doc

五年级上册笔算乘法练习要求：先估算，将估算结果写在算式上方，再计算并验算提示：部分习题可应用积不变规律列竖式计算）6.5871.5＝ 10.5690.6＝ 0.1257453＝ 0.60823.7＝ 30800.914＝ 6.7244.68＝756.34.86＝ 0.54631.28＝ 40.0760.65＝ 9800037.65＝ 0.18563.14＝ 0.80775.8＝0.5737680＝ 7.693.009＝ 36000.6458＝ 6.280.875＝ 7.1680.0839＝ 607.80.546＝28.3657.09＝ 6.2898.75＝ 8640.2787＝ 301.256400＝ 0.86562800＝ 157076.54＝69.5735.8＝ 5.60940.08＝ 14.658.97＝ 6.3820.9647＝ 500.287.036＝ 0.6020.0739＝46.58.875＝ 408000.0635＝ 42.690.84＝ 0.8477.128＝ 7.19438.6＝ 0.8000539.26＝0.077626.25＝ 293.40.637＝ 1.88435.01＝ 78.3400.26＝ 0.5089.865＝ 5.944.0605＝638200.0475＝ 0.827394.2＝ 40.08660.55＝ 0.263770.8＝ 0.6859050.6＝ 83.0594200＝3.6270.0839＝ 68.936527.564＝。