Pre-Algebra

Here you can learn about:
==== Patterns... ==== 1,23
 * Patterns
 * Pattern Match - Colors
 * Pattern Match - Shapes
 * Pattern Match - Numbers
 * Number Patterns

==== Big and small numbers ... ==== ,
 * Place Value
 * Decimal Numbers
 * Rounding
 * Scientific Notation

==== Handling negative numbers ... ====
 * Add and Subtract Positive and Negative Numbers
 * Multiplying Negative Numbers

Doing Calculations ...
≥
 * Associative, Commutative and Distributive Laws
 * Order of Operations - PEMDAS, or BODMAS
 * Open and Closed Sentences
 * Reciprocals
 * Absolute Value

Using Inequalities (less than, greater than) ...
42
 * Equal, Greater or Less Than
 * Comparing Numbers

Using Exponents ...
3 x 2 = 6
 * Squares and Square Roots
 * What is an Exponent?
 * Negative Exponents

Factors and Multiples ...

 * Factors and Multiples
 * Greatest Common Factor
 * Least Common Multiple

Ratios and Proportions ...
%
 * Ratios
 * Proportions

Fractions and Percents ...

 * Fractions
 * Percents

Rational and Irrational ...
?
 * Rational and Irrational Numbers

==== How to Estimate answers ... ====
 * Introduction to Estimation
 * Estimation Tips and Tricks
 * Visual Estimation
 * Estimation Games

==== Some examples using Pre-Algebra ... ==== Here are some subjects where you can use your new skills:
 * Celsius and Fahrenheit
 * Interest