1、四年级数学下册小数加减法混合运算专项练习78一、口算。 8.80.7 7.64.3 0.630.02 8.70.93.30.3 8.12.6 0.650.02 3.40.65.20.1 8.63.2 0.70.28 5.10.43.60.1 7.71.8 0.870.32 90.75.40.6 81.6 0.730.01 7.40.77.80.2 7.72.4 0.880.21 1.50.54.20.8 6.22.9 0.870.12 70.94.70.8 61.5 0.830.25 7.30.7二、混合运算。 0.760.329.8 5.70.710.29 51.930.319.9 75.4
2、29.8281.44 79.5517.7593.83 7.171.941.55 70(5.830.12) 83.1(236.8) 6.94.652.06 一、口算。 80.3 6.23.4 0.630.22 1.30.280.6 8.64 0.860.13 7.60.45.80.4 8.90.7 0.790.34 6.60.24.60.2 63.7 0.650.19 8.20.83.80.2 7.43.4 0.710.41 5.60.43.50.6 6.82.1 0.650.13 80.45.80.5 6.33.5 0.610.2 3.50.590.2 6.90.4 0.840.43 6.20
3、.4二、混合运算。 0.830.368.6 6.70.552.45 57.135.920.1 67.0617.0634.67 70.8942.9159.11 5.923.371.23 60(4.440.57) 89.8(19.35.1) 6.3541.86 一、口算。 1.90.9 6.64.2 0.90.28 3.90.38.90.8 8.41.6 0.880.11 8.40.87.60.6 7.70.7 0.890.43 2.20.68.90.6 7.72.9 0.810.22 6.70.84.10.3 7.13.1 0.850.09 5.50.58.50.3 6.31.1 0.680.0
4、4 5.30.92.30.8 7.20.5 0.90.22 5.50.84.50.8 6.91.7 0.720.15 5.30.2二、混合运算。 0.790.175.7 9.10.813.19 62.918.412.4 87.3537.5538.05 62.5217.493.11 6.91.215.56 70(6.260.42) 67.7(14.59.8) 5.761.333.2 一、口算。 1.40.5 8.61.1 0.760.4 4.20.56.70.7 7.41.7 0.640.2 7.60.94.10.3 6.51.3 0.860.36 1.40.71.80.7 7.94.2 0.8
5、30.45 5.10.11.60.4 7.31.6 0.820.35 5.60.24.20.6 7.54.4 0.780.21 3.20.730.7 7.93.5 0.710.42 2.80.44.80.3 8.62.1 0.860.41 5.90.7二、混合运算。 0.840.341.9 6.20.351.65 89.355.931.6 76.7114.0326.76 62.6122.8277.08 7.331.874.93 90(5.820.76) 83.7(29.94.2) 9.281.323.24 一、口算。 1.70.8 8.30.8 0.720.38 7.60.63.10.7 8.
6、10.6 0.70.35 8.90.38.60.2 8.73 0.870.44 7.90.13.20.3 6.31.1 0.770.18 5.60.62.40.1 7.53.1 0.610.08 6.70.45.30.9 6.32.3 0.670.25 6.60.810.2 6.64.9 0.710.26 5.10.990.8 7.24.5 0.820.27 4.70.4二、混合运算。 0.620.151.1 8.20.610.39 78.641.926.1 74.1412.7846.77 70.1518.2545.17 3.791.921.25 50(7.940.87) 77.3(309)
7、9.035.582.7 一、口算。 60.6 7.43.6 0.870.25 1.90.77.40.3 6.43.8 0.710.14 4.20.17.20.5 6.31.8 0.740.15 7.30.93.80.2 7.63.2 0.780.36 6.10.97.50.6 6.31.9 0.90.05 4.60.66.80.8 7.93.1 0.860.39 4.70.58.20.8 6.64.7 0.730.16 4.30.42.30.1 8.34.7 0.880.17 1.70.7二、混合运算。 0.710.010.6 5.10.34.7 98.646.551.6 67.1837.73
8、14.5 89.0635.8211.01 5.821.251.88 70(4.280.33) 79.1(15.11.7) 5.471.592.7 一、口算。 2.40.1 8.11.7 0.640.07 8.80.34.20.4 7.64 0.640.26 6.90.990.1 84.6 0.670.47 20.46.20.7 8.31.1 0.860.24 60.63.50.6 7.14.9 0.690.08 5.20.56.50.7 8.82.7 0.860.21 4.90.85.30.8 70.8 0.760.12 2.40.81.20.8 72 0.760.07 50.1二、混合运算。
9、 0.650.436.1 5.30.840.16 73.820.810.9 61.4433.5886.01 73.2535.8421.83 5.753.061.3 20(4.30.21) 84.2(15.76.1) 3.522.011.37 一、口算。 60.9 7.32.2 0.850.33 8.50.16.20.9 8.94 0.750.35 6.50.22.20.6 7.72.2 0.80.47 5.30.460.6 8.32.7 0.610.41 6.50.75.50.5 93.6 0.630.14 8.60.46.60.9 6.83.5 0.890.29 8.90.21.90.6 8
10、.94.8 0.870.3 6.50.95.70.7 8.30.6 0.610.37 8.20.3二、混合运算。 0.620.25.2 8.90.644.36 48.710.215.3 70.4216.5733.03 83.1513.788.51 8.093.191.25 20(2.90.56) 94.7(156.7) 7.373.792.19 一、口算。 1.40.9 7.44.5 0.640.1 8.70.42.20.6 6.83.2 0.610.17 8.90.43.10.1 8.62.2 0.740.35 6.70.48.20.7 6.74.3 0.60.41 5.70.74.90.7
11、 7.12.4 0.70.34 1.70.41.70.4 8.64.3 0.710.33 1.30.63.70.8 62.3 0.770.42 4.20.88.80.7 7.44.9 0.860.35 4.10.1二、混合运算。 0.680.219.2 6.20.361.64 86.538.510.2 73.8413.924.18 80.0313.1688.85 7.713.22.74 60(7.50.22) 94.5(25.23.5) 4.42.691.65 一、口算。 6.90.2 6.73.7 0.640.33 5.80.25.60.7 6.94 0.880.26 5.40.11.30.
12、4 61 0.660.09 2.10.78.90.9 6.71.4 0.650.26 5.40.73.90.3 6.50.7 0.690.04 2.30.87.50.5 6.44.3 0.610.04 4.20.78.30.7 8.32.2 0.680.13 4.30.96.30.9 7.14.4 0.80.43 1.40.9二、混合运算。 0.780.472.3 9.40.243.76 96.858.337.8 62.6923.6325.85 64.1745.7245.66 9.052.385.25 20(5.060.96) 96.2(17.87) 3.991.981.48 一、口算。 2.
13、60.9 8.42.2 0.780.09 1.50.78.60.1 8.21.2 0.80.12 8.50.51.50.4 63.1 0.680.02 3.90.23.40.8 7.33.4 0.780.06 8.10.96.50.2 72.8 0.880.33 8.90.15.60.9 8.23.8 0.710.36 3.40.41.20.8 8.31.9 0.640.13 7.90.78.70.9 8.54.6 0.730.08 2.30.8二、混合运算。 0.840.42.1 9.20.313.69 95.813.258.6 78.732.3270.48 76.9716.1962.61
14、9.633.072.71 80(7.830.81) 62.8(20.25.2) 4.922.132.61 一、口算。 8.90.7 6.71.4 0.70.08 2.20.11.10.7 6.62.6 0.70.04 7.10.670.6 8.74.9 0.870.02 10.97.50.1 8.31.4 0.740.42 2.90.64.70.4 7.40.7 0.650.33 6.70.93.50.1 8.54.4 0.670.27 7.50.14.40.3 6.91.1 0.670.14 8.60.56.30.3 8.91 0.60.47 8.50.1二、混合运算。 0.830.342
15、5.70.750.25 35.519.311.8 82.1929.5252.54 89.4746.8741.01 3.641.041.37 50(8.20.59) 81.4(12.98.7) 6.33.521.85 一、口算。 8.20.6 8.54.2 0.790.18 3.10.77.70.8 7.13.8 0.60.33 8.60.75.70.4 72 0.860.4 3.90.64.50.5 6.30.5 0.810.09 1.20.32.20.4 7.92.7 0.860.11 5.70.84.10.4 8.21.8 0.780.42 4.10.96.70.9 6.82.3 0.80
16、.42 2.30.28.60.2 6.63.6 0.890.13 7.30.3二、混合运算。 0.740.253.5 6.60.791.21 44.91220.6 7616.4768.13 77.5141.7785.16 4.481.992.01 50(9.970.89) 83(17.26.7) 9.622.244.66 一、口算。 1.20.5 7.61.1 0.860.15 8.80.31.10.5 8.53.2 0.670.45 4.80.23.60.5 7.53.8 0.630.32 3.20.91.70.4 6.91.8 0.750.26 7.50.97.80.7 6.84 0.65
17、0.25 7.50.36.30.1 6.73.9 0.70.06 1.80.83.50.9 6.11 0.890.03 2.20.68.30.4 8.54.2 0.760.33 3.30.2二、混合运算。 0.720.21.3 5.10.550.45 92.338.951.4 61.2928.191.34 73.8132.6683.22 6.251.093.75 70(8.30.84) 89.2(21.35.5) 8.115.541.77 一、口算。 1.90.5 7.21.6 0.810.46 3.30.38.50.5 7.73.4 0.610.18 8.60.95.50.5 6.64.4
18、0.630.39 8.30.54.90.8 7.93.1 0.620.17 60.83.50.7 8.22.7 0.870.27 8.70.48.10.1 8.13 0.650.4 3.10.61.40.6 8.51.9 0.70.29 8.30.97.70.9 6.14.8 0.80.04 10.1二、混合运算。 0.80.498.9 5.20.781.22 96.924.259.5 64.3330.398.69 60.6623.3478.7 9.687.351.94 80(2.080.45) 82.1(198.3) 7.925.312.1 一、口算。 2.20.5 82 0.820.13
19、5.90.56.90.3 6.23.8 0.720.23 20.55.20.4 8.63.2 0.660.2 3.20.77.80.3 6.23.9 0.860.49 5.40.81.70.5 8.94 0.640.44 1.30.78.10.3 6.80.9 0.630.49 1.90.57.20.4 7.81.7 0.830.03 2.50.940.1 62.8 0.690.47 4.50.4二、混合运算。 0.650.153 5.40.772.23 835912.8 87.8528.6748.09 84.8918.966.36 4.921.31.49 40(2.20.95) 97.2(1
20、9.66.3) 6.462.263.55 一、口算。 5.10.8 6.82.6 0.730.09 7.90.17.40.7 7.72 0.850.25 50.560.5 8.41.6 0.750.32 3.50.210.7 6.92.2 0.840.28 2.50.86.60.9 8.11.9 0.770.4 5.70.820.7 6.51.7 0.630.3 5.20.63.10.5 6.11.1 0.90.28 1.30.850.3 6.93.1 0.750.32 6.30.8二、混合运算。 0.760.473 50.262.74 3923.710.5 75.5845.712.15 62.3120.1643.17 6.342.143.16 90(9.470.13) 84.1(22.45.6) 8.73.114.12 一、口算。 2.30.2 6.82.1 0.710.39 6.70.25.10.5 8.40.2 0.680.25 6.40.82.20.2 8.91.9 0.740.11
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