Question

2.(+7)+5.(-2)

(-6).(-3)+2.(-6)

3.(+8)-7.(-7)

2.(+10)+5.(-2)-10

3.(-1)-5.(-1)+4-(-1)

10-(-1)+(-1).(-3).2.(+3)+2

-4+(-1)-(+5).(-3)-4+7.(-2)

8.(-5)-(-7).(+2)-3-4.(-1)+6​

Answer 1

Resposta:

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

14 - 10 = 4

(-6).(-3)+2.(-6)=

18 - 12= 6

3.(+8)-7.(-7)=

24 + 49 = 73

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

20 - 10 - 10 = 0

3.(-1)-5.(-1)+4-(-1) =

3 + 5 + 4 - (-1) =

3 + 5 + 4 + 1 = 13

10-(-1)+(-1).(-3).2.(+3)+2=

10 + 1 - 1 . (-3) + 6 + 2 =

11 + 3 + 8 = 22

-4+(-1)-(+5).(-3)-4+7.(-2) =

-4 -1 - 15 - 4 - 14 =

- 5 - 19 - 14 =

- 24 - 14 = - 38

8.(-5)-(-7).(+2)-3-4.(-1)+6​ =

- 40 + 14 - 3 + 4 + 6 =

- 26 + 1 + 6 =

- 25 + 6 = - 19

-------------------------------------

Espero ter ajudado!