Question

PLEASE HELP ME!!!

Which expression has a value of 8?

a: 10−(−2)

b: (−10)−(−2)

c:(−2)−(−10)

d: (−2)−10

Answer 1

C.

-2 - -10= 8

The negative stays the same. The two dashes in between 2 and 10 become pluses.

10 - 2 = 8

The bigger number positive or negative is the dominant passing down their + or - to the value.

Answer 2

c:(-2)-(-10)

Explanation:

When two minus symbols are next to each other in an expression, they become a plus sign.

a: 10-(-2)

10+2

12

b: (-10)-(-2)

-10+2

-8

c: (-2)-(-10)

-2+10

8

d: (-2)-10

-12