怎样算简便就怎样算.
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科目:小学数学 来源:不详 题型:解答题
| 15.6789÷20÷5 | 2.8×23.4+11.1×57.6+6.54×28 |
| 34.5×8.23-34.5+2.77×34.5 | 0.9999×0.7+0.1111×2.7. |
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科目:小学数学 来源:不详 题型:解答题
| 333×666+999×778 |
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8.69-1
| 538×
|
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