Pre-Algebra

Here you can learn about:

Patterns...

• Patterns
  
  • Pattern Match - Colors
  • Pattern Match - Shapes
  • Pattern Match - Numbers
• Number Patterns

1.23

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) ...

• Equal, Greater or Less Than
• Comparing Numbers

4²

Using Exponents ...

• Squares and Square Roots
• What is an Exponent?
• Negative Exponents

3 x 2 = 6

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