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1、最新资料推荐五年级第一讲 小数乘除法简便计算专项练习(一)一、计算训练A1.253.20.25 4.71.251.6 1.2588 1.256.40.25 4.60.35+4.60.652.551.5+1.5+6.451.5 2.95101-2.9512.550.16 3.210.1 0.52105 10.014.5 (12)1.80.9+0.185.40.68+3.420.46 8.99.9+110.99(1.25+0.25)16 23.9-0.60.6-0.643.70.442.5 1.98.80.880.77770.7+0.11112.1 8881.6+2223.6 二、计算训练B920
2、.9+7.2 4.87.8780.521.879.90.187 3.140.6831.40.0327.20.22.41.4 4.2988.4 12.79.91.27 2.316+2.323+2.33.654.736.50.37 1010.87-0.9187 0.12572 460.33+540.336.81+6.8199 9.599三、脱式计算(能简算的要简算)2.57.14 16.129916.12 5.20.90.97.2899+7.28 4.3500.2 2615.715.72456.59956.5 4.8100.1 7.0910.80.87.099.5101 8.7 17.4 - 8.7 7.4 4.40.83.40.8(9.37+9.37+9.37+9.37) 25 4.2.1.254.21.752.376.3+2.373.7 2.51.250.32 3.810.17.69101 3.810.1 0.2539+0.25四、填空:7.070.3商是23.5,余数是( )五、解答题两个数相乘,小马虎把第一因数30.95中的9写成了6,结果积比正确答案少0.81,那么另一个因数是多少?3