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In this module you can study how to substitute given values into a formula.

The one-minute video above shows how to evaluate a formula using substitution.

The five-minute video from mathlablady goes into a more indepth explanation.

The most common error made when substituting values into a formula is made when negative signs are dropped.

You must use Order of Operations rules when evaluating formulas.

- Study solving by substitution (positive numbers only)This site from cimt.plymouth.ac.uk shows you the basics of using substitution to evaluate a formula. It contains text, practice questions and an online quiz. All the examples contain positive numbers only.
- Study solving by substitution (with positive and negative numbers)This site from cimt.plymouth.ac.uk shows you the basics of using substitution to evaluate a formula. It contains text, practice questions and an online quiz. The examples contain positive and negative numbers.

Use these search terms to find additional resources:

*evaluate formulasubstitution into formula*