五年级数学简便计算练习题(共12页).docx

精选优质文档-倾情为你奉上简便计算(1)5.327.934.68 2.50.390.4 32.18.31.7 12.39(5.182.39) (252.50.25)4 1.83.52.51.8 12.58.8 3.61.23.61.22 6.83.62.6864 1.3112.582 1.25320.25 3.80.99 简便计算(2)4.699+4.6 7.5101-7.51.252.5（804） 4.647+4.654-4.6 7.682.50.4 0.4572+450.18+