Question

A) -(+1)+(-7)+(-3)+(4)+(+5)

b) +(+7)+(-14)+(-3)+(+8)+(+14)+(+8)

C) -(+5)+(+7)-(+2)-(+5)+(-2)-(-1)​

Answer 1

Resposta:

A) -(+1)+(-7)+(-3)+(4)+(+5) =

- 1 - 7 - 3 + 4 + 5 =

-11 + 9 =

-2

b) +(+7)+(-14)+(-3)+(+8)+(+14)+(+8) =

+ 7 - 14 - 3 + 8 + 14 + 8 =

-7 - 3 + 8 + 14 + 8 =

-10 + 8 + 14 + 8 =

-2 + 14 + 8 =

12 + 8 =

20

C) -(+5)+(+7)-(+2)-(+5)+(-2)-(-1) =

- 5 + 7 - 2 - 5 - 2 + 1 =

2 - 2 - 5 - 2 + 1 =

0 - 5 - 2 + 1 =

-7 + 1 =

-6