1、 3 65.5 0.28 0.25三、小数加减乘混合运算 0.25 5.8 0.4 0.79 98 0.79 2 58.360 .5 18.2 40.1252 1.01 8.5-1.01 3.5 59.46 + 18.28 46.31 - 21.76 5.67-(2.34+1.67) 5.85-1.75-0.25 5.67-(2.34+1.67) 0.4 0.076 1.5 0.062 6.5 0.34 1500.12 0.87 1.5 1.6+2.40.3 3.4+1.25 2.4 31.8+3.2 4 8.59 4.1 0.1 4.59 2.6+1.4 9.56 + 12.78 12.37
2、 - 5.694 20.67-11.34 15.85+0.285 23.15 17.46 0.57 0.032 6.8 0. 29 12.6 0.63 3.07 0.59 0.27 1.05 5.67 0.2-0.62 33.34+4.5 2 0.8 2.5+6.2 3.45+1.79 0. 5 112.6-11.4 5 12.56 + 0.297 3.285+1.79 13.25-6.88 6.85+3.765 27.8-13.45 2.43 0.028 1 3.4 0.74 1.35 10.3 16.8 0.68 0.1593.57 10.138.673.867 (12.51.25)8 1.2 2.5+8.2 6 3.71.630.3715.3 8.63250.063250一、小数加减法(竖式计算) 27.38+4.83= 26.75+2.83= 3.64-2.58= 6.52-3.44= 15.31+13.51= 5.6 2.09= 3.77 1.8= 0.62 9.56 = 5.22 0.83= 1.666 6.1= 6.8-6.8 0.5 0.25 3.2 12.5 2.6+2.4 (1.4 1.15) 7.7 9+7.9 3 0.8 15.5-(3.21+5.79)