Integers- Both positive and negative counting numbers
Integer Operations- Equations using various integers
In order to perform these operations, there are also some rules you have to know. There are different rules for adding, subtracting, multiplying, and dividing.
Addition + Subtraction
1. When adding two integers with the same sign (negative or positive), you add the two numbers and keep the sign the same
1. -2+-9= -11
2. If you are adding and the signs are different, you add and keep the sign of the bigger number
1. -7+5=___
2. -7+5=-12
3. When subtracting, there's one rule- do plus the opposite. This means you want to make the subtraction sign an addition sign and put the opposite of the second number, like this:
1. 23-(-12)=____
2. 23+12=____
3. 23+12=35
Multiplication + Division
1. Anytime you are multiplying OR dividing two integers with the same sign, your answer will be positive
2. When you are multiplying/dividing two integers with different signs, your answer will be negative
---Caution!!!---
Be careful not to confuse you addition/subtraction rules with your multiplication/division rules!!!
NOTE:
THE PREVIOUS INFO COULD BE USED FOR MANY REAL LIFE SITUATIONS. EX- DOING BILLS OR DEALING WITH MONEY AND/OR DEBTS
For a complete do-it-yourself practice sheet, CLICK HERE
If you still need more help on solving problems with integers, CLICK HERE
If you want a repeat of the rules, CLICK HERE
If you want some integer games, CLICK HERE
