Question

a)+5+2×(+4)+12 b)–15–6–10×(2)

Answer 1

Resposta:

a) 5 + 8 +12 = 25

b) -15 - 6 - 20 = -41

Answer 2

a)+7x4=+21+12=+33
b)19x2=38

eu posso tar errada ;)