Question

3. Calcule o valor das expressões numéricas:

a) -8 +8 +1-8+8+1 18
b) (-5-5) + (-5+2)+(5-2)
c) (-1).(-10).(-3).(+6)
d) 36 (-6) +5.4​

Answer 1

Explicação passo-a-passo:

a)-8+8+1-8+8+1 = 18

b) -10-3+3=-10

c) (−1)×(−10)×(−3)×(+6)=-180

d)-6 + 20= 14

Answer 2

Resposta:

Olá anjinho,

a) 2

b)-10

c)-180

d)14

Explicação passo-a-passo:

$a) \: - 8 + 8 + 1 - 8 + 8 + 1 =$

$0 + 1 - 8 + 8 + 1 =$

$1 - 8 + 8 + 1 =$

$- 7 + 8 + 1 =$

$1 + 1 =$

$2$

$b) \: ( - 5 - 5) + ( - 5 + 2) + (5 - 2) =$

$- 10 + ( - 5 + 2) + (5 - 2) =$

$- 10 - 3 + (5 - 2) =$

$- 10 - 3 + 3 =$

$- 10 + 0 =$

$- 10$

$c) \: ( - 1) \times ( - 10) \times ( - 3) \times ( + 6) =$

$10×(−3)×(+6)=$

$- 30 \times ( + 6) =$

$- 180$

$d) \: 36 \div ( - 6) + 5 \times 4 =$

$- 6 + 5 \times 4 =$

$- 6 + 20 =$

$14$