﹙﹣0.5﹚-[﹣3又4分之1]+2.75-[7又2分之1]
= - 1/2 + 3 + 1/4 + 2 + 3/4 - 7 -1/2
= + 3 + 2 - 7 + 3/4+ 1/4 -1/2 - 1/2
= -2 + 1 - 1
= -2
施主,我看你骨骼清奇,
器宇轩昂,且有慧根,
乃是万中无一的武林奇才.
潜心修习,将来必成大器,
鄙人有个小小的考验请点击在下答案旁的
"选为满意答案"