上海冰雕嘉年华:HELP ME？？？？？？

来源：百度文库 编辑：高考问答 时间：2024/05/16 07:12:08
A+B=2
A-B=？

有很多可能
例如：1-1=0
-1-3=-4
-2-4=-6

2-2B

.....题越来越难了~~看不明白

当AB为自然数时，结果为正负1、2

0

A+B=2
A-B=？
B=2-A
A-(2-A)=2A-2

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