① ②-32+(-3)2+(-5)2×(-)-0.32÷|-0.9|
计算:.
(2011四川重庆,17(1),3分)计算:|-3|+(-1)2011×(π-3)0-+()-2
计算:
(2011湖南怀化,17,6分)计算:
计算:|-5|+22-(+1)0