1四年级数学简便计算练习卷四年级数学简便计算练习卷一、口算。3.2+1.8= 0.9+0.6= 0.10.01= 1.20.12 10.385= 3.22.3= 0.760.38 157.352.652.1+0.2= 0.3+0.7= 3.6+1.6= 7.5-0.5= 3.7-0.9= 2.13-0.02= 3.51+0.2= 102+0.3= 1.12-1.02= 4.5-0.01=1.50.5 10.9 2.30.6 0.90.81.90.9= 3.5 2.4= 0.360.64 0.960.30.825 0.02500 1.058 04.32 2.810 0.041.5 0.570.43 3.60.40.620.29 5.672.8 6.4+0.7= 6.4-0.7= 6.4+0.7-0.6= 6.4-（0.7-0.3）= 1.34+0.7+0.3= 6-0.4-0.6=6.96= 0.90.6= 10.09= 0.90.1= 2.72.2= 0.20.8= 0.80.8= 5.510= 1.30= 0.70.9= 0.80.6= 8.243.76= 140.78= 14.60.34= 1.38.56= 0.80.55=40.04= 10.03= 30.53.05= 0.80.45=0.782.2= 50.08= 3.250.75= 100.1=4.13.8= 10.71= 6.22.6= 0.431100= 0.6510100= 4.55.4= 32.620=680 + 230 = 560 80 = 830 - 230 = 1500 300 =15 80 = 0.7 + 0.3 = 8 + 0.42 = 1.2 + 8 =0.63 + 0.37= 8.1 - 4 = 2 - 1.4 = 4.5 - 4.2 =0.64 - 0.24= 3.6 + 10 = 3 + 3.7 = 9.2 - 4 =0.3万万+5万万= 7亿亿-0.3亿亿= 8.8万万+12万万= 5.6万万+0.21万万=2二、用竖式计算小数加减二、用竖式计算小数加减203.65 3.21.73 18.73.14 23.52.84.9612.71 2.618.94 7.2936.4176018.7 14.598.7 2118.456.14+3.83= 7.93-1.64= 5.23-2.36= 3.44+3.36= 7.74-5.85= 9.35-4.74= 38.63-3.48= 1.16+4.77= 8.17-5.26= 2.26-0.86= 4.93+4.75= 76.55+4.68= 31.1+4.5= 31.9+3.4= 3.45+4.6= 4.45+54.5= 3.83+5.55= 2.75+1.3= 39.4-2.75= 67.3-1.26= 61.9+6.2= 67.1-6.6= 46.8-2.8= 47.6-2.15= 44.4+1.4= 1.7+9.66= 43.3+6.3= 64.4+8.67= 55.5-1.9= 38.9-5.55=16.3316.339.479.47 9.059.053.3053.305 8.656.31= 107.64= 13.68.46= 0.991.1=三、用竖式计算小数乘法三、用竖式计算小数乘法39.314.69.314.6 6.83.56.83.5 0.420.990.420.99 6.050.346.050.34 30.76.730.76.7 0.062.80.062.8232344.644.6 6.130.46.130.4 3202.53202.5 2.080.62.080.6 2.81.52.81.5 1.528.51.528.5 4.050.784.050.78 2301.76=2301.76= 7.02407.0240 1.2371.237 2.30.62.30.6 4.050.84.050.8 8.92.318.92.31 0.5400.540 6.08506.0850 2.07402.0740 2.43.82.43.8 1.231.61.231.6 1.052.31.052.3 5.240.325.240.32 40.25.440.25.4 14.52.414.52.4 7.544.57.544.5 1.4241.424 6.871.46.871.4 7.854.37.854.3 12.41512.415 50.14.550.14.5 4.85304.8530 7.40.487.40.48 1.465.81.465.8 4.561.44.561.4 7.522.37.522.3 40.67.240.67.2 1101.81101.8 5.420.325.420.32 456456 0.420.42 7.081.27.081.2 7002.57002.5 4.51.44.51.4 7.895.27.895.2 4.861.24.861.2 8700.168700.16 7511.37511.3 1000.141000.14 1405.21405.2 1.470.991.470.99 1200.481200.48 1.567.81.567.8 7.041.47.041.41.425.241.425.24 1.561.21.561.2 0.2354.20.2354.2 5.021.25.021.2 3.560.143.560.14 4.531.24.531.2 1.464.51.464.5 4.521.34.521.3 4.864.24.864.2 4500.484500.48 7.850.417.850.41 79.54.679.54.6 4.284.14.284.1 7501.47501.4 6.321.46.321.4 5.554.45.554.4 1.254.81.254.8四、下面各题怎样算简便就怎样算。 （1）小数加减法计算27.3+73.2+72.7 585+189+215 5.851.750.25768274126 5.85+1.89+2.15 24.8+14.6+15.4442.522.177.83 3.8+1.37+6.2+12.63 17.05(2.056.4) 3.73+5.28+4.27+4.72 2.53.250.757.56.94.83.1 0.4566.223.78 15.89(6.755.89)4.025.40.98 5.171.83.2 13.75(3.756.48)3.687.562.68 7.852.340.854.66 35.61.815.67.23.822.90.189.1 9.64.83.6 7.140.532.475.272.860.661.73 13.354.682.68 73.81.6413.85.3647.87.45+8.8 0.398+0.36+3.64 15.75+3.590.59+14.2566.868.661.34 36.83.96.1 324.90.9 25.48(9.40.52) 3.94.16.15.9 15.02-6.8-1.02324.90.9 146.5(2346.5) 9.43-（6.28-1.57）4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.980.134+2.66+0.866 1.27+3.9+0.73+16.1 7.54.96.5 3.070.381.62 1.293.72.716.3 82.451.5553.251.790.591.75 23.40.813.47.2 3.20.364.81.64 1.233.40.236.6 12.7（3.70.84） 36.541.764.54147.322.68 2.648.677.3611.33 45.23+9.9+10.1 56.37-6.24-3.76 45.55（6.8215.55） 34.5217