题干

计算.

28+34=____

52+28=____

47+36=____

54+27=____

53+34=____

46+45=____

17+63=____

23+68=____

79+14=____

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答案(点此获取答案解析)

62,80,83,81,87,91,80,91,93

同类题3

The _________ on his face was kind of strange, when I told him the news.