Common Algebra Mistakes

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Your Resource for Stronger Math Skills

Common Algebra Mistakes
Real Mistakes from Real Student Work

Find the algebra mistakes in these examples and read plain language explanations so you can avoid making these same mistakes!

Pre-Algebra

Example 1 (Addition)
Example 2 (Addition)
Example 3 (Multiplication)
Example 4 (Fractions)
Example 5 (Fractions)
Example 6 (Fractions)
Example 7 (Fractions)
Example 8 (Fractions)

Algebra Fragments

Example 1 (Exponents)
Example 2 (Factoring)
Example 3 (Linear Expression)
Example 4 (Rational Expression)
Example 5 (Linear equation)
Example 6 (Linear equation)
Example 7 (Exponential)
Example 8 (Exponential)
Example 9 (Exponential)
Example 10 (Exponential)
Example 11 (Logarithms)
Example 12 (Logarithms)

Parentheses

Example 1

Rational Expressions (Fractions)

Radical Expressions

Example 1
Example 2
Example 3 (distance formula)

Miscellaneous Expressions

Example 1

Function Notation

Example 1 (f(x+h))
Example 2 (f(x+h))
Example 3 (f(x+h))
Example 4

Solving Linear Equations

Solving Linear Inequalities

Example 1

Solving Quadratic Equations

Solving Rational Equations

Solving Exponential Equations

Solving Logarithm Equations

More examples will be added, so be sure to come back and visit again soon.

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Algebra Facts Flashcards and other resources

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