1、计算专项练习计算专项练习(1)(1) 6.314.56= 3.830.9= 37.83.02= 1.823= 107.08= 2.51.26= 8.56.69= 26.40.063 精确到个位 2.340.15= 1.0625= 20.46.03= 1.845= 5.92 1.6 0.63 0.15 243.2 6.4 4.687.5= 3.952 0.76 140.4 18 7.22 3.8= 10845= 精确到百分位 计算专项练习( 2) 4.32.14= 166.7= 8.367.4= 0.631.5= 0.452.85= 17.63.9= 12.542= 2.61.08= 3.85
2、0.014 96 0.64= 8.68 6.2= 104 0.52 精确到百分位 6.2424= 92.525= 1325= 3.22.5= 19.4412= 5.980.23= 5.40.015= 64.8 19 保留三位小数 计算专项练习(3) 7.4+0.26= 10-0.26= 4.26.5= 0.752.63 保留三位小数 0.780.52= 0.4220.5= 0.951.87= 1.5665= 1.080.05= 0.211.4 11.70.36= 0.5250.35= 0.7560.18= 2.04 24= 40.40.5= 2.61.08= 0.90.045= 6.210.0
3、3= 0.132.5= 917 精确到百分位 计算专项练习(4) 2.7+3.13= 78.92115.8= 32.08= 141.248.98= 2.0424= 6.52.05= 0.7050.94= 7.50.24= 8.841.7 = 0.46101= 0.170.32= 7.80.13= 10.344.7 = 0.0820.15= 711 10.7512.5= 精确到十分位 3.259.04 = 3.258= 50.448= 1. 2118 保留整数部分 计算专项练习(5) 205.674= 9016.75= 3.56+7.5 = 15.3-6.09= 1.823= 26.40.063= 0.465 15= 50.4 48= 0.861.2= 0.150.65= 9.72 0.027= 4.95 3.3= 0.4480.28= 4.450= 7.26.25= 3.2520.8= 7.04 4.07= 3.52 55= 1.872 2.4= 179.2 64 =