问题
解答题
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答案
240×4=960, | 26×3=78, | 50×16=800, | 4×170=680, |
25×40=1000, | 18×30=540, | 140×6=840, | 40×40=1600, |
208×69≈14000, | 48×103≈4800. |
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240×4=960, | 26×3=78, | 50×16=800, | 4×170=680, |
25×40=1000, | 18×30=540, | 140×6=840, | 40×40=1600, |
208×69≈14000, | 48×103≈4800. |