五年级数学寒假•简便计算练习

五年级数学寒假•简便计算练习


简介:
(1)4.9+4.57+5.1 =4.9+5.1+4.57 =10+4.57 =14.57 (2)18.3-5.7-3.3 =18.3-(5.7+3.3) =18.3-9 =9.3 (3)4.8×18.4+4.8×1.6 =4.8×(18.4+1.6) =4.8×20 =96