问题
解答题
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答案
39×303≈12000; | 215×38≈8000; | 48×299≈15000; | 180×31≈6000; |
208×40≈8000; | 5.2×391≈2000; | 328×18≈6000; | 18×59≈1200; |
99×201≈10000; |
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39×303≈12000; | 215×38≈8000; | 48×299≈15000; | 180×31≈6000; |
208×40≈8000; | 5.2×391≈2000; | 328×18≈6000; | 18×59≈1200; |
99×201≈10000; |