[計量] pp3的一題
The reflection of a positive integer is obtained by reversing its digits.
For example, 321 is the reflection of 123. The difference between a five-digit
integer and its reflection must be divisible by which of the following?
2
4
5
6
9
A: 9
不知道是題目看懂不會算還是根本看不懂題目= ="
感謝~
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09/24 13:35, , 1F
09/24 13:35, 1F
→
09/24 13:36, , 2F
09/24 13:36, 2F
→
09/24 13:37, , 3F
09/24 13:37, 3F
→
09/24 13:38, , 4F
09/24 13:38, 4F
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