Question

vcs conseguem resolver pra mim essas contas (pfv)

31+(-40):(+2)=

-10-20:(+4)=

(+30):(-6)+(-18):(+3)=

7:(-7)+2•(-6)+11=

(-36):(-4)+3•(-3)=

35-6•(+6)+(54):(-6)=

2+(-75):(-5)-4•(-4)=

4•(-20)-(-120):(+2)+28:(-7)=​

Answer 1

Explicação passo-a-passo:

31 + (– 40) ÷ 2 = 31 + (– 20) = 11

– 10 – 20 ÷ 4 = – 10 – 5 = – 15.

30 ÷ (– 6) + (– 18) ÷ 3 = – 5 – 6 = – 11

7 ÷ (– 7) + 2 × (– 6) + 11 = – 1 – 12 + 11 = – 2

(– 36) ÷ (– 4) + 3 × (– 3) = 9 – 9 = 0

4 × (– 20) – (– 120) ÷ 2 + 28 ÷ (– 7) = – 80 + 60 – 4 = – 24