1、1.384 5.18.78 832.6610.059 0.24.268 1.757 5.79.46 2.8517.8 6.41.5 4.92.5 0.885.555 5.22.22 3.337.658 8536.02 0.356.78 4.35.5 551.35.3 6.39.9 1.44.8 9.15.59 4.81.31.62.1 7.63.8 2.38.7 0.10.42.8 3.58857X5.72.5 X0.8836.02 X0.34.4 X.36.4X2.40.6 X70.2 X5.64.6 X3.83.8 X2.31.8 X9.61.7 X4.79.8 X4.31.1 2.6 6
2、X19.46 X2.855.555 X5.256.78 X8 34X8.812.48 X44.2 9.48.49.1 5.61.8 .66.1 8.68.97.7 9.92.98.21 0.059 0.1 5.34.1 0.89.88.6 0.5 4.6229.570.41.9 13.493.9 185.44 岀641.84 -721.7 -967.5 T05230.4 -0.6121.24 -366.21 -0.030.66 -0.315.6 4.67 -.90.736 -23210- 1.443.5 X1251.3 -0.2769.6-2.90.02 X966.1 35.21 7- 91.
3、2X3.838.4 -0.85.22 X0.39.432 X0.00239.6 X240.756 -0.1815- 0.069.99 X0.025.6 X6.54.88 -2.90.61 8.9 -2.4.028.2 -0.120.8 -0.976.4 -5.44.7 -332- 4214.36 -.78.33 -6.21.7-0.0356.7881.25 -1.22.41 -0.71.384 -5.112.6 0.059 X).25.7 5.71.50.396 T.2二0.756 .36=1.3=0.18 1.5=0.025 1.4=13.06 36=0.04 .12 =3.84 2.6 5
4、.76 =16.9 -0.135.2 0.615.25 50.25 0.04617.15 223.9 18.4 1-.335.4 4.22.52 3.490.75 -3.33.7-0.0166.40.50.042 0.5425 3.68 0.2513.76 -0.8=4.48 0.76 -0.320.12 .16 =1.55 - 1.082.5 -0.7=(保留三位小数)10.1 -3.3=(商用循环小数)10.75 -2.5=(用乘法验算)3.25 X.04=(用除法验算)36.02 -0.3(循环小数的用简便方法,除不尽保留 2 位小数):8.2 -0.12 0.8 -0.9 76.4 -
5、5.44.7 -3 32-42 14.36 -2.73、脱式计算(能简算的要简算)0.90.92.57.1 4 16.129916.127.28 99+7.284.3 50 0.2642.64 2615.715.724(2.275 0.625) 0.28 4.40.83.4 3.94+34.3 1.2(9.6 -2.4) -4.88.91.1 4.76.58 4.5 0.5+1.5815 乜4)324.90.94.84.8(1.250.125) 100.156.5 9956.57.0910.80.87.094.85 + 0.3517.4 - 8.7 7.412.540.5 七.81 .186.81+6.81 9918540