亲.四道数学题.马上就得交.
(1又1/3+1/8-2.75)x(-24)-|-2|^3
(-7/30)÷(3/5-1/6+2/3
-7÷5/9x(-2/3)^2x(-2)^2
-1^4-1/6x[2-(-3)^2]