来自田荣海的问题
能简便计算的要简算(1)(12.5-1.25)×8(2)5.7×18.34-57×0.834(3)38.7×0.412+5.88×3.87(4)5.64+99×5.64(5)20.1×35.22-3.522(6)20.9-0.9×2.5.
能简便计算的要简算
(1)(12.5-1.25)×8
(2)5.7×18.34-57×0.834
(3)38.7×0.412+5.88×3.87
(4)5.64+99×5.64
(5)20.1×35.22-3.522
(6)20.9-0.9×2.5.
1回答
2020-07-15 19:25