Question

me ajudem é pra hoje a tarefa gente por favor

Answer 1

a) (18-15+3)+2
(3+3)+2
6+2= 8

b)30+(50-12)-15
30+(38)-15
30+38-15
68-15= 53

c)13-8+7-4-2
5+3-2
8-2= 6

d)(60-12)-(10+20)-14
48-30-14
18-14 = 4

e)(100-35+15)+(200+135-98)
(65+15)+(335-98)
80+237= 317

f)200-(40+50)-30-10
200-90-30-10= 70