Question

vc quer obter o resultado indicado .onde vc deve colocar os parentes
13-8-3+2=0
13-8-3+2=10

Answer 1

13 – 8 – 3 + 2 = 0 ⇒ 13 – 8 – (3 + 2) = 0

13 – 8 – 3 + 2 = 10 ⇒  13 – (8 – 3) + 2 = 10