Last updated 6 years ago
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