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1、小数的四则(混合)运算专项卷一、直接写出得数。(每题1分，共10分)0.70.23 0.530.30.20.7 9.6430.6 10.010.630.9 0.130.44.80.8 1.431.43二、用竖式计算，最后两题要验算。(每题3分，共24分)2.583.47 3.64.986.24.95 10025.967.50.24 4.123.58.841.7 29.90.26三、按要求计算。(每题3分，共12分)13.526.7 (保留一位小数)3.080.43 (保留两位小数)9.021.3 (保留一位小数)4.342.4 (保留两位小数)四、脱式计算。(每题3分，共24分) 4.84.8
2、0.5 642.640.52.551.70.59 3.25.611.4(3.120.9)(10.4) 2.5(7.52.9) 82015.54(3.72.8) 6.48(1.40.8)0.9五、下面各题，怎样简便就怎样算。(每题3分，共30分)1.90.568.10.44 27.85(3.42.15)1.259.60.083.450.25431.542.6812.320.753.21.25 7.24.53.251013.25 3.61026.67.80.6622答案一、0.930.230.142.450.990.70.0525.69二、2.583.476.05 3.64.988.58 6.24
3、.951.2510025.9674.04 7.50.241.84.123.514.42 8.841.75.229.90.26115三、13.526.7360.5 3.080.431.32 9.021.36.94.342.41.81 四、4.84.80.5 642.640.54.82.4 641.322.4 62.682.551.70.59 3.25.611.41.50.59 17.9211.40.916.52 (3.120.9)(10.4) 2.5(7.52.9) 84.020.6 2.510.486.7 2683.252015.54(3.72.8) 6.48(1.40.8)0.92015.5
4、410.36 6.48(0.60.9)201.5 6.480.5418.5 12五、1.90.568.10.44 27.85(3.42.15)(1.98.1)(0.560.44) 27.852.153.4101 303.411 26.61.259.60.08 3.450.2541.250.089.6 3.45(0.254)0.19.6 3.4510.96 3.4531.542.6812.32 0.753.21.2531.54(2.6812.32) (0.754)(0.81.25)31.5415 3116.54 37.24.5 3.251013.257.20.953.25(1011)853.251001.63253.6102 6.67.80.66223.61003.62 6.67.86.62.23607.2 6.6(7.82.2)367.2 6.610 66 我是小玲老师，专注于小学教育