Review the rules of significant figures and apply the rules in calculations.

Using Measurements to Describe Matter

Certain and Uncertain digits

When is a Zero Significant?

Rule For Calculations

Significant Digits Rules for Multiplying/Dividing/Adding/Subtracting and Scientific Notation

Review the rules of significant figures and apply the rules in calculations.

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You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.