1、人教版四年级数学下册小数加减法混合运算专项练习题115一、口算。 7.60.9 6.32.5 0.760.07 4.30.44.40.2 7.40.8 0.890.09 6.90.61.70.3 7.42.4 0.660.16 2.80.78.50.6 8.82 0.660.17 8.40.61.20.6 7.40.3 0.90.25 8.40.18.10.7 7.83.7 0.630.3 6.50.97.20.6 8.73.4 0.840.02 7.30.54.80.4 7.51.8 0.710.29 1.10.6二、混合运算。 0.760.254 6.60.650.35 62.237.21
2、5.7 78.4517.9283.8 74.3219.9659.12 7.172.542.48 80(7.390.71) 67.6(25.95.9) 7.543.392.21 一、口算。 8.10.8 8.23.8 0.630.21 6.90.51.80.4 8.54.7 0.790.27 8.90.830.1 7.23.8 0.680.47 8.20.27.40.1 60.3 0.890.21 8.20.34.30.3 6.21.9 0.630.48 90.34.80.1 6.44.7 0.820.43 50.65.20.7 8.50.5 0.680.19 8.80.72.90.7 6.83
3、.7 0.680.46 4.50.3二、混合运算。 0.880.383.9 8.10.571.43 76.952.517.8 81.218.0664.56 85.438.9125.28 4.161.282.74 40(5.860.98) 84.7(11.14.1) 5.842.842.89 一、口算。 1.90.6 7.93.2 0.80.48 4.60.74.70.1 60.3 0.710.48 3.90.56.30.2 6.13.8 0.640.47 3.30.61.20.4 70.1 0.670.09 6.80.14.10.2 7.91 0.760.43 6.50.18.20.9 7.5
4、1.3 0.670.24 3.50.84.40.3 7.53.3 0.730.18 5.90.66.80.5 8.94.6 0.770.45 8.20.4二、混合运算。 0.750.368.6 7.60.93.1 6011.241 81.0845.6660.5 67.4517.3624.28 8.747.181.07 30(2.680.86) 94(263) 8.545.642.25 一、口算。 5.50.5 6.44.9 0.640.11 1.60.31.20.4 8.41.7 0.620.4 7.50.97.60.7 6.93 0.740.02 6.40.11.70.8 7.10.8 0.
5、780.36 2.80.25.80.9 6.62.6 0.670.08 2.50.98.70.9 8.91.2 0.680.39 2.30.67.80.1 70.9 0.720.12 6.10.83.20.3 94.1 0.870.49 3.90.8二、混合运算。 0.740.081.2 70.170.83 39.522.513.9 79.3914.2524.8 89.4110.6812.05 9.774.564.62 30(3.940.44) 83.4(29.57.4) 9.235.373.29 一、口算。 7.80.7 8.63.3 0.760.26 7.80.850.8 8.94 0.8
6、80.13 6.90.45.30.6 7.24.9 0.740.23 4.80.53.50.1 7.62.9 0.670.22 3.10.92.50.6 84.7 0.860.48 4.60.51.40.2 8.94.4 0.890.2 10.93.90.2 82.9 0.710.04 8.50.22.90.3 6.33.1 0.730.28 10.1二、混合运算。 0.740.137.6 7.10.461.54 51.92021.8 89.6731.9819.27 82.2627.4595.2 5.943.172.65 90(9.950.89) 79.5(18.61.6) 7.045.431
7、.58 一、口算。 5.40.8 63.7 0.820.25 7.80.36.80.2 8.23.8 0.730.05 6.60.76.50.4 6.22.5 0.650.3 6.70.28.80.4 7.32.5 0.820.26 4.20.25.30.1 7.71.4 0.650.3 1.10.73.60.9 7.63.3 0.790.04 3.30.76.40.6 6.70.2 0.890.03 5.10.51.80.8 90.4 0.640.24 8.20.4二、混合运算。 0.610.255.6 8.30.492.51 79.235.915 89.5639.9823.45 66.18
8、15.0573.73 4.872.51.13 20(5.740.58) 92.8(18.12.3) 4.592.381.72 一、口算。 7.60.1 6.92.4 0.880.44 4.10.12.90.2 7.83.5 0.630.08 7.60.57.30.9 8.73.1 0.690.31 7.50.68.50.4 6.40.2 0.830.12 2.10.15.90.1 7.94.2 0.680.24 50.78.20.7 8.13.1 0.80.29 4.40.76.70.7 6.13.7 0.740.16 3.60.760.4 7.80.7 0.760.1 6.60.2二、混合运
9、算。 0.880.476.7 9.90.751.25 87.364.818.9 87.431.1829.81 81.2912.7757.24 6.534.81.43 90(50.21) 88.4(247) 6.761.653.33 一、口算。 8.40.1 7.53.7 0.60.11 4.40.66.40.2 81 0.770.18 5.70.34.20.3 7.11.8 0.690.43 7.50.74.60.7 71.5 0.640.11 70.74.70.9 7.74.7 0.810.06 50.13.10.5 8.83.9 0.810.01 2.20.66.30.9 74.6 0.8
10、70.3 6.50.85.30.6 6.72.1 0.630.07 2.10.2二、混合运算。 0.720.477.7 8.90.851.15 93.165.820.3 81.9946.1553.3 74.5734.4645.78 8.623.382.08 20(5.290.18) 68.5(12.17.2) 4.561.511.57 一、口算。 7.20.4 8.32.6 0.770.06 1.60.61.30.1 6.31.4 0.650.22 8.50.94.70.2 7.13.1 0.80.04 4.90.21.30.5 7.52.6 0.760.38 6.20.93.80.6 7.1
11、3.7 0.740.04 7.50.96.30.1 8.64.4 0.830.06 5.20.65.60.4 7.63 0.740.32 4.80.12.90.3 80.1 0.890.2 4.20.7二、混合运算。 0.70.075.9 6.70.510.49 97.559.122.7 61.241694.26 67.8248.5996.63 9.215.391.88 30(6.380.51) 96.9(18.24.3) 6.572.223.3 一、口算。 7.90.2 61.1 0.780.15 4.40.48.10.9 6.82.1 0.790.13 1.60.26.10.2 8.53.
12、1 0.770.09 5.30.68.30.3 8.22.1 0.70.33 6.40.220.7 6.90.9 0.690.13 8.50.920.4 90.5 0.760.04 2.90.66.30.7 6.44.7 0.660.37 5.70.18.70.1 7.30.7 0.810.17 3.50.2二、混合运算。 0.70.075.5 7.10.80.2 64.945.315.7 84.9810.2791.11 63.5236.615.73 6.925.391.22 30(1.230.19) 88.8(23.91.2) 9.262.064.91 一、口算。 7.20.5 6.44.9
13、 0.690.25 1.70.94.50.4 7.32.4 0.780.17 5.20.55.20.2 8.60.1 0.670.34 1.20.23.30.9 7.63.9 0.810.03 6.40.82.90.6 7.71.7 0.830.48 5.90.93.90.8 6.63.1 0.760.17 3.40.57.40.6 8.10.3 0.640.01 1.60.95.20.2 7.30.9 0.750.15 3.60.1二、混合运算。 0.60.123.7 8.10.443.56 77.717.651.7 60.3620.0341.8 71.0726.6289.25 7.776.
14、141.21 70(3.290.4) 76.2(28.96.2) 5.11.61.4 一、口算。 6.50.4 6.30.9 0.710.07 3.70.21.50.4 8.12.3 0.830.16 1.60.91.10.8 80.7 0.640.27 6.60.440.4 7.42.9 0.880.37 4.50.32.90.2 6.51.6 0.850.18 8.60.94.30.8 6.71.1 0.740.01 2.50.72.10.1 6.94.1 0.640.37 4.60.21.50.1 6.90.3 0.860.19 1.70.4二、混合运算。 0.710.457.9 8.9
15、0.70.3 48.324.720.2 64.6328.5554.08 87.8947.6660.23 7.471.335.07 40(4.340.56) 84.9(12.91.1) 3.891.871.79 一、口算。 5.70.9 7.44.9 0.780.12 2.20.81.80.8 6.33.6 0.610.33 2.70.88.70.2 8.14.5 0.670.33 2.70.41.10.7 6.30.6 0.810.05 6.10.73.70.7 6.94.7 0.630.18 7.50.91.40.3 6.11.8 0.810.02 3.10.65.10.5 92.6 0.8
16、60.44 3.20.18.50.9 6.91.4 0.890.31 7.60.3二、混合运算。 0.840.494.6 8.90.491.51 77.929.322.4 80.7741.7787.1 80.4612.5572.21 8.31.695.89 20(4.590.84) 95.4(19.23.3) 9.071.822.38 一、口算。 4.60.7 7.42.2 0.730.34 4.10.31.50.2 7.64 0.890.4 1.20.66.80.9 7.41.6 0.710.24 1.60.11.80.1 8.93.7 0.660.34 2.40.590.2 6.73.8
17、0.830.03 1.90.13.10.8 8.30.6 0.660.47 50.190.9 6.30.1 0.690.19 8.50.82.70.4 7.61.5 0.860.37 5.90.5二、混合运算。 0.860.197.8 9.90.654.35 49.915.431.7 82.1228.1965.36 85.0324.1520.17 9.337.641.19 50(9.290.48) 85.8(177.4) 8.935.211.57 一、口算。 8.70.4 7.70.5 0.60.06 5.90.630.8 8.61.2 0.750.42 8.30.84.20.3 8.44.9
18、 0.810.22 2.50.41.80.1 7.13.8 0.80.07 8.60.37.30.6 8.72.9 0.620.16 90.18.90.3 6.21.6 0.870.06 6.70.33.30.5 7.93.3 0.820.4 90.920.4 8.70.2 0.850.38 8.20.2二、混合运算。 0.70.066.1 9.50.643.36 80.332.417.5 87.6337.657.02 80.8129.257.63 5.441.43.55 90(9.820.93) 84.6(28.49.1) 7.974.533.35 一、口算。 2.40.8 6.43.6 0
19、.820.22 4.70.92.70.1 7.33.2 0.60.37 5.80.210.1 7.64.8 0.840.39 6.50.45.10.8 8.61 0.690.02 6.50.23.20.1 8.61 0.610.17 3.50.25.70.4 8.60.4 0.880.25 3.40.88.80.3 7.51 0.70.15 5.10.330.5 81.9 0.660.31 3.90.7二、混合运算。 0.650.147.2 5.10.411.59 99.54633.8 77.4235.3839.53 68.3347.5476.48 3.741.811.84 50(4.050.
20、88) 68.1(18.58.3) 4.441.461.77 一、口算。 1.20.3 8.80.4 0.670.44 80.27.10.7 8.61.9 0.740.01 3.50.18.20.7 8.40.9 0.750.22 70.33.40.6 8.82.8 0.610.31 5.40.730.7 6.32.9 0.640.09 8.10.82.20.1 7.82.7 0.680.36 1.60.37.70.3 7.62.2 0.850.26 4.40.88.70.1 8.10.8 0.830.36 4.30.6二、混合运算。 0.90.086.2 60.572.43 45.121.715.7 81.3637.3658.53 60.8226.3955.73 9.837.881.73 80(7.120.52) 98.2(11.19.6) 4.531.123 一、口算。 4.30.4 7.60.8 0.780.37 1.60.51.90.3 6.32.9 0.890.04 3.40.850.2 7.94
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