(1)-1+(+11)-(-8)+(-4)= (2)8-2×(-3)-(-4)+(-1/2)=

问题描述:

(1)-1+(+11)-(-8)+(-4)= (2)8-2×(-3)-(-4)+(-1/2)=
(3)-1²-|0.5-2/3|÷1/3×【-2-(-3)²】=

(1)-1+(+11)-(-8)+(-4)= -1+11+8-4=14
(2)8-2×(-3)-(-4)+(-1/2)=8+6+4-1/2=18-1/2=17.5
(3)-1²-|0.5-2/3|÷1/3×【-2-(-3)²】=-1-|-1/6|*3*(-2-9)=-1+(1/6)*3*11=9/2=4.5