计算 - ( - 2 ) + ( π - 3 . 14 ) 0 + 27 3 + ( - 1 3 ) - 1
计算:(1) (2)
计算 (1)(2)
计算:
)计算 (1) -26-(-15) (2)(+7)+(-4)-(-3)-14 (3)(-3)×÷(-2)×(-) (4)-(3-5)+32×(-3)
1+3+5+……+99-(2+4+6+……+98)