Question

me ajudeee
5) Calcule o valor de cada expressão numérica:
a) 7: (-7) +2.(-6) + 11
c) 35-6.6+54: (-6)
b) - 36 : (-4) + 3. (-3)
d) 2 - 75: (-5) -4 (-1)​

Answer 1

a)

$7÷(-7) + 2 \cdot 6 + 11$

$- 1 + 12 + 11 =$

$= \fcolorbox{black}{red}{22}$

b)

$35 - 6\cdot6 + 54 =$

$35 - 36 + 54 =$

$- 1 + 54$

$= \fcolorbox{black}{red}{53}$

c)

$(- 36) \div 4 + 3\cdot( - 3) =$

$- 9 + ( - 9) =$

$- 9 - 9 =$

$= \fcolorbox{black}{red}{ - 18}$

d)

$2 - 75 ÷ 5 - 4 \cdot (-1) =$

$2 - 15 + 4 =$

$= \fcolorbox{black}{red}{ - 9}$

Bons estudos!

Answer 2