Question

(- 12 ) + 20 =
20+ ( - 10 ) + 30 =
( - 15 ) + 25 + (-10) =
(-8) + (-2) + 6 =​

Answer 1

Respuesta:

8

40

0

-4

Explicación paso a paso:

a+(+b)= a+b

a-(-b)=a+b

a+(-b)=a-b

a-(+b)=a-b

Answer 2

Respuesta:

(- 12 ) + 20 =

- 12 + 20 =

8

20+ ( - 10 ) + 30 =

20-10+30

50-10

40

( - 15 ) + 25 + (-10) =

-15+25-10

25-25

0

(-8) + (-2) + 6 =

-8-2+6

-10+6

-4