Question

How would I use number properties to simplify the following expression.
-5 + (5 + 3)

Answer 1

any ideas?

Answer 2

I think I need to use the additive inverse or additive identity.

Answer 3

$$\Huge a+(b+c)=(a+b)+c$$$$\Huge -5+(5+3) = (-5+5)+3$$

Answer 4

Is that the distributive property, and is that all I need to do?

Answer 5

That is the associative property

Answer 6

Oh

Answer 7

$$\Huge -a+a=0$$

$$\Huge -5+5=0$$

Answer 8

$$\Huge 0+a=a$$

$$\Huge 0 +3=3$$

Answer 9

And I believe that's the additive inverse
and the second one would be the additive identity

Answer 10

a + (-a) = 0 is called the property of opposites

a + 0 = a is called the identity property of addition

Answer 11

Thanks!

Answer 12

Thanks for asking :-)