(1)-1²-(1-0.5)×1/3×[2-(-3)]²

问题描述:

(1)-1²-(1-0.5)×1/3×[2-(-3)]²
(2)|-7/9|÷(2/3-1/5)-1/3×(-4)²
(3)-5×(-11/5)+13×(-11/5)-3÷(-5/11)

1.-1-25/6=-31/6
2.5/3-16/3=-11/3
3.11-143/5+33/5=-11