Question

EU QUERO COM CÁLCULOS PF.
CALCULE O VALOR DAS EXPRESSÕES:
A)2.(+5)+13=

B)3.(-3)+9=

C)(-7).(-5)-(-2)

Answer 1

A) 2.(+5)+13 => 10+13=23

B) 3.(-3)+9 => -9+9=0

C) (-7).(-5)-(-2)=> 35-(-2)= 37

Answer 2

A)2.(+5)+13=+23

+10+13

+23

B)3.(-3)+9=0

-9+9

0

C)(-7).(-5)-(-2)=+37

(-7).(-5)+2

+35+2

+37