|A-2|+|B-3|=0, so A=2 B=3.

A+B/AB=2+3/6=2.5

2、

-2008-|-3 |-0. 1. 1/8 1.375 2 1/3 2003

3、

-|-6 | =-6 & lt； |-6|=6

-(-6)= 6 & gt； -|-6|=-6

4、

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