要正确

问题描述:

要正确
[2.4-(-2.7+3.5)-2.2]-(-6.7+5.4)
-2^2*8*(-2.5)*(-125)
13又1/8/(-7)*(-2)^3
1又1/6*(1/6-1/3)*3/14
20/(-4)*5+5*(-3)/15-7
(-2)^3/(1又1/3)^2+(-4又1/2)*(1/3)+125%

[2.4-(-2.7+3.5)-2.2]-(-6.7+5.4) =(2.4-0.8-2.2)-(-1.3)=-0.6+1.3=0.7-2^2*8*(-2.5)*(-125) =-(4*2.5)*(8*125)=-10*1000=-1000013又1/8/(-7)*(-2)^3 =(105/8)/(-7)*(-8)=(105/7)*(8/8)=151又1/6*(1/6-1/3...