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【OG20-P276-266题】
If a is a 3-digit integer and b is a 3-digit integer, is the units digit of the product of a and b greater than 5 ?
(1) The units digit of a is 4
(2) The units digit of b is 7.
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个位数可以是0的 所以两个都要选
题目讨论 (1条评论)

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张晓婧
units digit个位
1
0 回复 2018-08-06 08:42:34