1、人教版四年级数学下册小数混合运算综合练习题51一、口算。 2.80.8 7.60.7 0.690.11 7.40.18.80.3 6.24.8 0.640.22 2.30.66.20.1 74.2 0.650.25 6.20.82.30.9 8.40.9 0.870.25 4.20.98.40.6 8.51.3 0.820.45 3.10.340.7 92.6 0.710.05 6.20.36.90.5 7.93.3 0.850.26 5.90.28.50.6 6.83.1 0.660.04 60.9二、混合运算。 0.660.061.9 6.20.553.45 70.517.425 64.4
2、45.5984.55 63.7643.227.34 6.452.632.63 30(8.370.12) 98.8(22.82.2) 3.821.731.2 一、口算。 7.70.9 6.72 0.840.12 20.95.50.9 8.14 0.710.32 4.90.82.50.1 8.31.9 0.850.43 2.30.42.70.8 7.10.7 0.850.42 8.70.36.40.5 6.84.8 0.620.12 5.80.28.40.2 8.52.1 0.890.22 2.90.18.60.3 6.50.2 0.80.46 6.90.15.40.4 70.3 0.890.24
3、 3.70.5二、混合运算。 0.790.384.6 8.70.563.44 62.836.911.5 69.948.4763.1 65.0216.650.13 5.253.451.31 60(7.420.32) 69.1(26.56.7) 4.471.021.11 一、口算。 3.10.8 6.60.6 0.710.22 1.30.45.20.7 8.10.9 0.730.42 50.73.40.4 8.92.1 0.820.32 6.70.46.70.4 8.64.7 0.70.21 7.10.12.50.4 8.34.9 0.850.4 4.90.71.50.2 8.51.2 0.710
4、.34 3.60.93.50.6 7.51.7 0.810.07 7.20.62.30.5 8.44.1 0.840.08 7.90.4二、混合运算。 0.840.058.8 6.90.320.68 60.443.413.7 75.5422.666.89 71.3818.3374.7 5.844.241.34 40(6.90.38) 89(20.39.3) 9.496.361.66 一、口算。 7.60.4 6.40.4 0.650.28 4.70.85.70.8 8.50.8 0.630.13 1.30.98.10.5 8.14.1 0.680.32 4.90.76.20.9 8.60.9
5、0.820.2 3.30.37.10.3 81.9 0.660.05 3.90.91.80.9 6.63.9 0.850.47 6.80.73.70.8 7.44.9 0.850.49 8.90.21.20.2 8.50.3 0.880.24 4.10.3二、混合运算。 0.670.37.4 8.70.751.25 79.926.452.9 60.4842.6167.58 73.3137.544.68 7.112.251.18 60(3.790.43) 65.2(27.15.5) 3.562.041.39 一、口算。 6.70.8 7.84.9 0.720.38 2.10.73.70.3 8.
6、91 0.620.2 1.40.67.50.9 7.22.3 0.880.48 7.80.45.10.3 8.94.5 0.620.18 6.60.96.10.3 8.13.3 0.820.4 3.40.36.80.5 6.91.9 0.660.23 1.70.34.30.2 7.21.9 0.870.24 6.10.84.10.8 8.54.1 0.790.46 10.6二、混合运算。 0.70.394.9 9.60.31.7 83.644.415.7 89.5932.2674.1 77.3814.2335.92 71.11.39 90(8.370.18) 85.5(27.99.4) 7.3
7、43.972.31 一、口算。 5.10.3 8.92.3 0.870.2 7.50.21.70.3 8.11.8 0.880.31 3.80.72.60.2 6.51.2 0.790.38 3.50.81.10.7 6.92.2 0.70.32 30.23.70.4 74 0.880.37 4.70.35.50.8 7.50.3 0.840.02 1.50.43.90.7 7.80.3 0.860.24 1.70.54.70.8 7.32.5 0.850.25 8.90.9二、混合运算。 0.840.094.4 7.20.363.64 64.716.536 77.4316.8560.33 8
8、2.0810.7575.22 9.212.376.77 20(7.220.94) 92.1(11.74) 7.215.291.52 一、口算。 5.30.5 73.2 0.860.03 5.40.13.40.5 64.2 0.720.2 90.43.20.9 8.10.3 0.880.33 20.95.50.5 6.11.6 0.60.45 6.10.45.90.1 8.43.4 0.640.36 4.80.42.70.3 8.54.4 0.870.47 2.40.48.90.1 6.63.8 0.660.05 4.80.48.90.8 6.80.7 0.690.21 20.4二、混合运算。
9、0.760.129.6 8.40.754.25 55.923.610.3 68.8410.6494.67 68.1915.6353.96 4.933.311.26 40(6.280.52) 90.8(14.63.6) 5.512.911.42 一、口算。 2.80.5 6.34.2 0.690.39 4.40.57.60.9 7.21.7 0.630.33 70.26.10.3 8.91.3 0.60.26 3.40.65.20.2 7.90.8 0.720.04 8.70.35.70.4 81 0.640.04 7.30.32.40.1 7.13.2 0.670.01 3.10.75.30.
10、3 7.30.7 0.70.45 4.90.55.10.8 6.50.9 0.710.4 3.60.4二、混合运算。 0.80.362 8.50.481.52 42.421.619.2 71.5644.8246.7 77.5117.3431.22 3.91.381.23 70(3.140.21) 75.9(24.43.6) 7.715.851.77 一、口算。 90.5 6.44 0.690.47 3.70.38.30.1 8.42.2 0.750.23 80.93.70.5 7.44 0.760.43 5.70.34.10.8 8.83.8 0.60.25 4.60.57.30.7 7.51
11、.6 0.860.26 8.90.930.4 8.54.7 0.730.23 7.10.81.70.6 7.21 0.630.39 5.80.97.40.1 84.9 0.750.37 6.10.6二、混合运算。 0.650.136.1 50.24.8 65.520.324 89.237.3621.75 84.5626.1683.7 5.211.392.81 80(6.670.61) 61.9(27.22.2) 5.492.352.74 一、口算。 3.10.2 64 0.840.44 7.40.48.70.9 7.42.6 0.780.07 6.50.41.20.1 6.83.8 0.680
12、.44 4.80.46.90.3 6.93.3 0.90.46 4.70.38.60.2 7.64.2 0.860.11 40.21.40.6 8.14.1 0.60.44 7.10.67.50.6 8.23.7 0.70.46 4.90.24.50.1 6.71.1 0.770.45 5.40.3二、混合运算。 0.670.43.1 5.10.742.26 48.918.518.6 89.7346.3682.37 61.2744.6467.99 8.393.483.06 90(1.20.88) 85.9(20.92.5) 3.791.561.61 一、口算。 6.10.7 7.33 0.87
13、0.23 4.80.470.9 6.84.4 0.790.18 2.60.28.30.7 7.71.1 0.870.29 1.20.41.10.9 6.43.5 0.880.07 2.10.78.70.2 7.14.3 0.60.35 4.90.61.90.7 7.50.9 0.810.44 5.50.92.90.1 6.21.5 0.70.17 8.60.78.80.1 6.63.5 0.790.31 6.30.5二、混合运算。 0.830.423.7 6.40.524.48 55.339.114 62.3439.2958.51 82.4847.4569.18 7.95.411.76 80(
14、6.520.21) 65.3(24.92.5) 6.34.381.22 一、口算。 8.70.5 8.43.1 0.760.02 8.20.51.20.3 7.60.7 0.650.47 5.30.74.60.4 8.94.4 0.80.09 6.30.93.70.4 7.50.9 0.80.17 1.30.53.60.7 6.31.9 0.660.21 7.90.45.10.7 8.40.7 0.880.18 2.10.12.10.8 6.12.6 0.670.24 4.10.92.40.1 6.23.7 0.710.02 2.40.7二、混合运算。 0.760.315 7.50.841.1
15、6 89.752.630.3 69.5117.2429.34 86.1839.1467.43 4.591.172.8 30(2.950.25) 74.9(22.96.1) 3.942.411.4 一、口算。 8.90.1 8.22.8 0.830.25 5.60.13.40.6 7.84.6 0.740.46 8.60.51.90.1 7.10.4 0.720.41 7.50.42.20.2 6.84.5 0.80.09 6.20.22.30.1 6.82.7 0.740.21 1.80.72.10.2 6.61.6 0.680.1 3.20.540.8 61.9 0.870.29 80.47
16、.70.2 8.53.1 0.620.04 3.70.6二、混合运算。 0.870.261.7 7.90.140.86 79.235.643 83.8612.3330.78 80.1147.1140.94 5.251.661.18 20(1.640.68) 82(11.61.7) 5.163.361.58 一、口算。 80.5 6.22.3 0.740.28 1.50.45.30.6 7.42.1 0.830.24 8.40.26.90.8 7.42.3 0.840.43 3.30.37.40.3 7.53.3 0.810.11 7.90.34.10.9 6.54.9 0.670.35 8.9
17、0.87.50.9 6.44.7 0.630.45 4.30.13.40.9 6.74.4 0.720.25 3.40.930.1 7.21.6 0.840.25 6.80.1二、混合运算。 0.770.115.4 9.80.273.73 997316.9 85.2310.4381.6 86.8918.1441.47 9.464.383.17 70(6.510.21) 73.4(23.67.7) 6.191.023.21 一、口算。 3.20.2 8.74.4 0.750.25 5.90.26.20.5 8.61.2 0.840.1 6.80.48.80.7 8.82.2 0.630.27 6
18、.90.74.50.4 7.51 0.790.49 1.30.82.40.3 8.71.7 0.780.08 4.70.61.90.5 6.21.6 0.630.38 6.70.82.90.6 8.53.3 0.610.49 80.13.80.6 7.80.7 0.750.19 2.20.5二、混合运算。 0.880.444.4 50.562.44 37.71915 85.7936.296.54 71.5826.0714.36 7.442.892.3 80(4.110.48) 79.9(24.43.2) 7.683.473.44 一、口算。 2.60.7 7.14.1 0.740.4 20.9
19、6.80.1 8.44.7 0.790.47 5.40.76.10.6 8.34.6 0.660.09 5.40.48.50.7 7.43.3 0.660.03 60.57.40.7 8.72.7 0.60.46 4.70.28.70.2 7.24.4 0.850.13 6.40.53.50.7 7.70.8 0.710.19 40.78.70.8 7.31.8 0.750.08 2.30.6二、混合运算。 0.840.483.4 7.20.312.69 89.860.724.5 73.4344.679.14 75.3113.946.77 5.862.471.51 60(8.970.41) 9
20、5(15.84.8) 7.872.463.51 一、口算。 5.30.3 62.7 0.660.16 1.20.57.40.5 7.41 0.670.47 4.70.56.80.4 6.51.2 0.620.34 8.60.16.50.4 6.62.7 0.760.28 7.40.96.10.8 7.94.9 0.680.49 4.60.92.50.9 7.40.6 0.770.19 3.30.84.20.9 82.9 0.780.44 1.60.26.40.1 8.14.9 0.720.49 6.50.7二、混合运算。 0.830.325.9 8.20.752.25 93.856.611.3 66.0842.399.15 69.0129.4563.41 4.631.611.34 60(1.670.72) 71.2(25.83.4) 8.124.383.12 一、口算。 8.80.7 7.64 0.870.21 5.50.75.80.5 8.23.5 0.810.34 1.30.77.30.9 7.91.4
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