Pre-Algebra

Pre-algebra introduces essential math skills that are useful in everyday life. Here we explore numbers, patterns, calculations, and problem-solving methods.

Let's discover:

Patterns ...

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

Big and small numbers ...

1.23

• 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

Using Exponents ...

4²

• What's an Exponent?
• Squares and Square Roots
• Negative Exponents

Factors and Multiples ...

3 × 2 = 6

• 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