计算: 5 5 - | 2 - 5 | + ( - 2 ) - 2 - ( π - 3 . 14 ) 0 .
计算: (1) (2)
计算:(1)2×(-5)+23-3÷.
(2)先化简,再求值: – ,其中x = –3
(1)计算:3(–π)0– + (–1)2011