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  23+9=32

  See how the digits of twenty-three are reversed(翻转) when you add nine. What other two-figure numbers can you add nine to and reverse their digits? Write down at least two of them, please.________

答案:
解析:

12, 34, 45, 67, 78, 89 are all the other two-figure numbers that reverse when you add 9.


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