装修问答

9×6+(6×4 +4×9)×2-8
=54+(24+36)×2-8
=54+120-8
=174-8
=166
答:需要粉刷的面积是 166平方米

9*6+2*（9+6）*4-8=166

(9*6)+(9*4*2)+(6*4*2)-8=146 (平方米)
答:需要粉刷的面积是 146平方米

9×6+(6×4 +4×9)×2-8
=54+(24+36)×2-8
=54+120-8
=174-8
=166

9×6+2×6×4+2×9×4=174

9*6+2*4*6+2*4*9-8=166
地板不用刷吧

(9*4+4*6)*2+9*6-8
=(36+24)*2+9*6-8
=60*2+54-8
=120+54-8
=174-8
=166(平方米)