问题:If 500 is the mutiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which multiple of 100 is closest to x+y? (1)x小于500 (2)y小于400
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问题:老师 32题不懂怎么解,都是看过答案解释还没懂的!
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问题:老师28题解答这里怎么是60的12次方,5的1次方?怎么化简化的?
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问题:老师,这道题做错了,不会,怎么解啊?谢谢!
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问题:May老师这道OG上的题没懂,即使看了下面的解释。谢谢哦!
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