Question

ola alguem pode me ajuda a responde essa tarefa de matematica obg



(1) calcule o valor de cada expressao numerica


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


(b) 30+(50-12)-15=


(c) 13-8+7-4-2=


(D) (60-12)-(16+20)



(e)(100-35+15)+(200+35-98)=



(f) 200-(40+50-90-76)=

Answer 1

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

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

c) 13-8+7-4-2=
5+7-4-2=
12-4-2=
8-2=
6

d) (60-12) - (16+20)=
48 - 36=
12

e) (100-35+15) + (200+35-98)
(65+15) + (235-98)
80 + 136=
217