Rules for Adding Integers with the Same Sign:1. The sum of two positive integers is positive.2. The sum of two negative integers is negative.Rules for Adding Integers with Different Signs:1. Subtract the absolute value of the numbers. The sum is: - positive if the positive integer has the greater absolute value. - negative if the negative integer has the greater absolute value.Practice! Practice! Practice!

Subtracting Integers 1. Add the opposite*2. Follow the rules for Adding IntegersPractice! Practice! Practice!*The opposite of a number is that number's additive inverse! Don't forget about our Keep-Change-Change Rule- keep the sign of the first number, change addition to subtraction, and change the sign of the second number.

DON'T FORGET ABOUT THE NUMBER LINE!

Integers- the set of positive and negative numbers, including zero.

A DAY IN THE LIFE OF AN INTEGER

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