Question

a. (+8)+(-3)+(+7)=
b. (+1)+(-4)+(+10)=
c. (+2)+(-9)+(-8)=
d. (-5)+(-2)+(+3)=
e. (-12)+(-9)+(+1)=
f. (-8)+(+10)+(-20)=​

Answer 1

→ Cálculo :

A) ( + 8 ) + ( - 3 ) + ( + 7 )

8 - 3 + 7

15 - 3

12

B) ( + 1 ) + ( - 4 ) + ( + 10 )

1 - 4 + 10

11 - 4

7

C) ( + 2 ) + ( - 9 ) + ( - 8 )

2 - 9 - 8

2 - 17

-15

D) ( - 5 ) + ( - 2 ) + ( + 3 )

- 5 - 2 + 3

- 7 + 3

-4

E) ( - 12 ) + ( - 9 ) + ( + 1 )

- 12 - 9 + 1

- 21 + 1

-20

F) ( - 8 ) + ( + 10 ) + ( - 20 )

- 8 + 10 - 20

- 28 + 10

-18