Welcome to “Math Problems With Mistakes”!

This site is devoted to common algebra errors made by many people. Each error is presented as part of a problem – see if you can find it!

Errors By Type

Collecting Like Terms

Collecting Like Terms #1

Collecting Like Terms #2

Order of Operations

Order of Operations

Distributive Property

Distributes over…

Negative Signs and Parentheses

Applying the Distributive Property

Fractions

Negative Signs and Fractions

Simplifying Algebraic Fractions #1

Simplifying Algebraic Fractions #2

Absolute Value

Absolute Value

Exponents

Sums and Products with Exponents

Laws of Exponents

Negative Exponents

 

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