题目内容
| 简便运算。 | ||||
|
| (1) = = |
(2)99.9×999+99.9 =99.9×1000 =99900 |
| (3)64×0.125×0.5×0.25 =1×1×1 =1 |
(4) =12+8+6+4 =30 |
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题目内容
| 简便运算。 | ||||
|
| (1) = = |
(2)99.9×999+99.9 =99.9×1000 =99900 |
| (3)64×0.125×0.5×0.25 =1×1×1 =1 |
(4) =12+8+6+4 =30 |