PRE---ALGEBRA.
Here you can learn about:
Patterns...
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Patterns Number Patterns |
Big and small numbers ...
| 1.23 | Place Value Decimal Numbers Rounding Scientific Notation |
Handling negative numbers ...
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Add and Subtract Positive and Negative Numbers Multiplying Negative Numbers |
Doing Calculations ...
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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 | Squares and Square Roots What is an Exponent? Negative Exponents |
Factors and Multiples ...
| 3 x 2 = 6 | Factors and Multiples Greatest Common Factor Least Common Multiple |
Ratios and Proportions ...
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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 |
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