Question

[Mai Linh]

a)-|-5+3-7|-|-5+7| b)24-(72-13+24)-(72-13) c)|4-9-5|-(4-9-5)-15+9 d)|-5+7-8|-(-5+7-8) e) (-20+10-3)-(-20+10)+27 f)13-[5-(4-5)+6]-[3-(2-7)] g) (14-12-7)-[-(-3+2)+(5-9)] h)14-23+(5-14)-(5-23)+17