Question

　　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.________

Answer 1

答案：
解析：

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