Adding positive numbers 2+3=5 Putting two positive numbers together to get farther away from zero. If you have 2 black chips and you get 3 more you will have 5 left.
Adding negative numbers -5+(-4)=-1 Putting two negative numbers together to get closer to zero on a number line. If you have 9 red chips and take away 4 you will have 1 red chip left.
Add a positive & negative -2+5=2 -5+2=-3 Depending on if the negative or positive is a higher number you will get a negative or positive. If you have 5 red chips and you add 2 black chips you would have 3 red chips left.
Subtracting negative # -5-(-3)=-8 Subtracting a negative is like adding a positive they both get farther away from zero. If you have 5 red chips then you get 3 more red chips you are left with 8 red chips.
Subtracting positive # 5-3=2 Taking away a little number from a bigger number getting closer to zero on a number line. If you have 5 black chips and take 3 away your'e left with 2 black chips.