计算: (1) (2)(-1)3×(-5)÷[(-3)2+2×(-5)].
(本小题满分12分) (1) (2)
计算:-(cos30°-1) 0-82×0.1252.
(8分)计算:
(本题5分)计算:|-2|-(3-π)0+2.
计算:.