Question

Calcule As Expressoes

a.8:2+[15-(4×2+1)]
b.9+[4+2x(6-4)+(2+5)]-8

Answer 1

a) 8:2+[15-(4x2+1)]
4+(15-9)
4+6=10

b)9+[4+2x(6-4)+(2+5)-8
9+[4+2x2+7-8]
9+7=16