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计算专项练习(1)
设计者 丹徒区上会中心小学 潘金林
6.3+14.56= 3.83+0.9= 37.8+3.02= 1.8×23=
10-7.08= 2.5-1.26= 8.5—6.69= 26.4×0.063≈
精确到个位
2.34×0.15= 1.06×25= 20.4×6.03= 1.8÷45=
5.92÷1.6= 0.63÷0.15= 243.2÷6.4= 4.68÷7.5=
3.952÷0.76≈ 140.4÷18= 7.22÷3.8= 108÷45=
精确到百分位
计算专项练习( 2)
4.3-2.14= 16—6.7= 8.36-7.4= 0.63+1.5=
0.45+2.85= 17.6+3.9= 12.5×42= 2.6×1.08=
3.85×0.014≈ 96÷0.64= 8.68÷6.2= 104÷0.52=
精确到百分位
6.24÷24= 92.5÷25= 13÷25= 3.2×2.5=
19.44÷12= 5.98÷0.23= 5.4÷0.015= 64.8÷19≈
保留三位小数
计算专项练习(3)
7.4+0.26= 10-0.26= 4.2×6.5= 0.75×2.63≈
保留三位小数
0.78×0.52= 0.42×20.5= 0.95×1.87= 1.56÷65=
1.08×0.05= 0.21÷1.4= 11.7÷0.36= 0.525÷0.35=
0.756÷0.18= 2.04÷ 24= 40.4÷0.5= 2.6×1.08=
0.9÷0.045= 6.21÷0.03= 0.13÷2.5= 9÷17≈
精确到百分位
计算专项练习(4)
2.7+3.13= 78.92+115.8= 3—2.08= 141.2-48.98=
2.04÷24= 6.5×2.05= 0.705÷0.94= 7.5×0.24=
8.84÷1.7 = 0.46×101= 0.17×0.32= 7.8÷0.13=
10.34÷4.7 = 0.082×0.15= 7÷11 ≈ 10.75÷12.5=
精确到十分位
3.25×9.04 = 3.25×8= 50.4÷48= 1. 21×18≈
保留整数部分
计算专项练习(5)
20-5.674= 90-16.75= 3.56+7.5 = 15.3-6.09=
1.8×23= 26.4×0.063= 0.465÷15= 50.4÷48=
0.86×1.2= 0.15×0.65= 9.72÷0.027= 4.95÷3.3=
0.448÷0.28= 4.4÷50= 7.2×6.25= 3.25×20.8=
7.04÷4.07= 3.52÷55= 1.872÷2.4= 179.2÷64 =
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