题目

直接写出得数。 + =              + =             - =           3× = 14× =             8× =             + =           2- = 答案：56 + 23 = 32      38 + 14 = 58        712 - 16 = 512      3× 23 =214× 47 =8          8× 712 = 143       23 + 16 = 56         2- 13 = 53

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