The Real Number System
A series of free Basic Algebra Lessons: Multiplying and Dividing Real Numbers, Order of Operations, Properties of Real Numbers.
Why a negative times a negative is a positive?
Use the distributive property to understand the products of negative numbers.
(negative)(negative) = positive
(negative)(positive) = negative
(negative) ÷ (negative) = positive
(negative) ÷ (positive) = negative
Parenthesis
Exponents
Multiply/Divide (Left to right)
Add/Subtract (Left to right)
Commutative Law of Addition
Commutative Law of Multiplication
Associative Law of Addition
Associative Law of Multiplication
Distributive LAw
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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