题目内容
巧算.
|
(1)738 -259-138 |
(2)358 +149-158 |
答案:341;349
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我会巧算.
| 1.2×0.4+1.3×0.4 | (1.25+0.36)×0.2 | 7.2×0.3+28×0.03 | 0.25×0.56×0.4 |
| 8×(2.5+0.125) | 0.25×0.56×0.4 | 32.8+5.6+7.2 | 75.2-66.9-5.2. |
题目内容
巧算.
|
(1)738 -259-138 |
(2)358 +149-158 |
| 1.2×0.4+1.3×0.4 | (1.25+0.36)×0.2 | 7.2×0.3+28×0.03 | 0.25×0.56×0.4 |
| 8×(2.5+0.125) | 0.25×0.56×0.4 | 32.8+5.6+7.2 | 75.2-66.9-5.2. |