Unit 4 Day 1: Subtracting Integers Warm Up

Subtracting Integers: Recall the rule is

Keep, Change, Opposite.   

Also known as K,C,O.

Once you rewrite it then use the addition rules to solve. 

Addition Rules:

Adding same sign :   Use same sign in your answer and add like normal.

Ex: 2 + 3 = 5             and            -4 + -9 = -13

Adding  Unlike or different signs:  When signs are different you will subtract the two numbers and your answer will take the sign of the larger number.

Ex:  10 + -5 = 5 (note this is positive because 10 is larger)         and     -12 + 6 = -6