Question

Resolva as seguintes expressões numéricas:
A)31+(-40)÷(+2)
B)-10-20÷(+4)
C)(+30)÷(-6)+(-18)÷(+3)
D)7÷(-7)+2.(-6)+11

Answer 1

Resposta:

A)31+(-40)÷(+2)

31+(-20)

11

B)-10-20÷(+4)

-10-5

-15

C)(+30)÷(-6)+(-18)÷(+3)

-5+(-18)÷(+3)

-5+(-6)

-11

D)7÷(-7)+2.(-6)+11

-1+2.(-6)+11

-1+(-12)+11

-13+11

-2

Answer 2

31 + ( - 40 ) ÷ ( + 2 )

31 + ( - 20 )

31 - 20

+ 11 ✔️

- 10 - 20 ÷ ( + 4 )

- 10 - 5

- 15 ✔️

( + 30 ) ÷ ( - 6 ) + ( - 18 ) ÷ ( + 3 )

- 5 + ( - 6 )

- 5 - 6

- 11 ✔️

7 ÷ ( - 7 ) + 2 . ( - 6 ) + 11

- 1 - 12 + 11

- 13 + 11

- 2 ✔️