四年級小數(shù)簡便運算.doc

小數(shù)簡便運算練習一姓名： 6.28+5.06+4.04 32.8+3.02+17.2 6.02+4.3+3.985.85+1.89+2.15 3.8+14.6+6.2 24.8+14.6+15.4100-36.4-43.6 51.27-8.66-1.34 15-1.2-0.875.8-3.25-6.75 1.83+3.79+0.17 3.2-4.3+1.882-18.6-14.4 5.85-1.75-0.25 19-9.05-0.95小數(shù)簡便運算練習二姓名： 3.73+5.27+1.2 75.8-3.25-6.75 100-36.4-43.632.8+3.02+17.2 7.45+8.29+2.55 13.78-（0.78+0.5）8.38+9.43+6.62 5.86-1.77+2.14 17.34-（9.8+6.34）0.93+5.45+4.55 32-6.34-3.66 2.5+3.25+0.753.8+6.5+6.2 100-5.6-4.4 6.76+2.77+3.23小數(shù)簡便運算練習三姓名： 52.89-（13.54+6.89） 53.14+（16.57+6.86） 22.6-（3.9+12.6）7.45+8.29+2.55 13.78-（0.78+0.69） 10-3.62-1.382.43-（0.28+1.43） 6.54-2.36-3.64 4.6+14.3+5.72.6+6.92+3.4 51.69-（11.69+10.15） 18.76-（5.76+2.9） 3.6+6.62+6.4 43.23-（13.23+10.75） 20.16-（10.16+3.8）小數(shù)簡便運算練習四姓名： 5.85+1.89+2.15 2.48+1.46+1.54 7.682.741.268.75+2.87+1.25 24.8+14.6+15.4 5.851.750.253.8+1.37+6.2+12.63 （15.28+28.99）+20.72 42.522.177.836.94.83.1 0.4566.223.78 15.89(6.755.89)4.025.40.98 5.171.83.2 13.75(3.756.48)小數(shù)簡便運算練習五姓名： 3.687.562.68 7.852.340.854.66 35.62.815.67.23.822.90.189.1 9.64.83.6 7.140.532.475.272.860.661.63 13.354.682.65 73.81.6413.85.3647.8+7.458.8 0.398+0.36+3.64 15.75+3.590.59+14.2566.868.661.34 36.83.96.1 324.90.9小數(shù)簡便運算練習六姓名： 25.48(9.40.52) 3.94.16.15.9 15.02-6.8-1.023.25.890.89 146.5(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 2.57+0.245+7.43 6.02+3.6+1.98 0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.54.96.5小數(shù)簡便運算練習七姓名： 3.070.381.62 1.293.72.716.3 82.451.553.251.790.591.75 23.40.813.47.2 3.20.364.81.641.233.40.236.6 12.7（3.70.84） 36.541.764.54147.322.68 2.648.677.3611.33 3.56+21.6+1.44-11.612.451.350.65 21.32（6.32+8.3） 27.3+73.2+72.7小數(shù)簡便運算練習八姓名： 3.73+5.27+1.2 75.8-3.25-6.75 100-36.4-43.632.8+3.02+17.2 7.45+8.29+2.55 13.78-（0.78+0.5）8.38+9.43+6.62 5.86-1.77+2.14 17.