题目内容
选择合适的方法计算。 | ||||
|
(1)22.5×(7.8+8.2) =22.5×16 =390 |
(2)13.8-0.416-2.584 =13.8-3 =10.8 |
(3)1.25×0.25×3.2 =1.25×8×(0.25×0.4) =1 |
(4)71.8×0.9+7.18 =71.8×(0.9+0.1) =718 |
练习册系列答案
相关题目
题目内容
选择合适的方法计算。 | ||||
|
(1)22.5×(7.8+8.2) =22.5×16 =390 |
(2)13.8-0.416-2.584 =13.8-3 =10.8 |
(3)1.25×0.25×3.2 =1.25×8×(0.25×0.4) =1 |
(4)71.8×0.9+7.18 =71.8×(0.9+0.1) =718 |