What is a negative + positive number? Example -5+3=
Do you mean like -19+8=? or what? Be more specific.
So, I'll do a few examples.
Ex 1: -5+3=?
Because the Commutative Property of Additon states that a+b=b+a (ex: 3+7=7+3), we can reorganize the statment.
So, -5+3 could also be 3+(-5) or 3-5.
Then, do simple math.
Ex 2: -3+9=?
Use the Commutative Property of Addition again.
-3+9 is also 9-3.
More simple math.
Here NinjaDevo gave a wonderful answer for 3-6
I pulled this straight out of our sticky notes under "Great answers to learn from"
So with any addition or subtraction you
1) start on the number line at the first number.
2) Go left if you are subtracting (just like NinjaDevo did)
3) Go right if you are adding