Question

(+8)+(-5)=
(+15)+(-3)=
(+10)+(-4)=
(-12)+(+20)=
(-30)+(+10)=
(+1)+(-8)=
(+3)+(-10)=
(-4)+(+1)=
(-8)+(+5)=
(-3)+(+3)=

Answer 1

Resposta:

$8 + ( - 5) \\ 8 - 5 \\ = 3$

$15 + ( - 3) \\ 15 - 3 \\ = 12$

$10 + ( - 4) \\ 10 - 4 \\ = 6$

$- 12 + (20) \\ - 12 + 20 = 8$

$- 30 + (10) \\ - 30 + 10 \\ = - 20$

$1 + ( - 8) \\ 1 - 8 = - 7$

$3 + ( - 10) \\ 3 - 10 = - 7$

$( - 4) + 1 \\ - 4 + 1 \\ = - 3$

$( - 8) + 5 \\ - 8 + 5 \\ = - 3$

$( - 3) + 3 \\ - 3 + 3 = 0$