计算下列各题:(1)(+4.3)-(-4)+(-2.3)-(+4);(2)-4-2×32+(-2×32);(3)(-48)÷-(-25)×(-4)+.
计算:()﹣1﹣20150+|﹣|﹣2sin60°.
计算: - 1 3 - 1 + 2015 - 3 0 - 4 sin 60 ° + - 12
计算:
计算:.