问题
解答题
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答案
37×20=740, | 300×60=18000, | 70×60=4200, | 800×50=40000, |
13×40=520, | 18×200=3600, | 16×40=640, | 32×60=1920, |
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37×20=740, | 300×60=18000, | 70×60=4200, | 800×50=40000, |
13×40=520, | 18×200=3600, | 16×40=640, | 32×60=1920, |