# Worksheet - What are Significant Figures or Significant Digits?

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Product Description
A concise 2-page reading and worksheet designed to introduce middle school and early high school students to the concept of significant figures, also known as significant digits. This product features a 1-page reading that addresses key concepts involving significant figures, including what they are, rules for determining if a digit is significant or not, and how to use significant figures in mathematical operations such as addition, subtraction, multiplication and division (see below). Finally, the worksheet includes 26 practice questions to review and test student understanding.

I use this as a reading and review worksheet that follows my PowerPoint presentation product entitled PPT - Significant Figures, which I use to introduce the topic to students. After showing the relevant PPT slides to my class and viewing a brief video clip, I hand out this activity for students to work on for the remainder of the lesson and for homework. This exercise is part of a larger suite of significant figures products. Links to these products are found below.

PPT - Significant Figures or Significant Digits
Worksheet - What are Significant Figures?
Quiz - Significant Figures

Product Contents:

Page 1 - Introduction to Significant Figures:

- What are significant figures?
- Rules for determining if a digit is significant or not significant (6 rules total)
- Examples of determining if a digit is significant or not, with explanations
- How to correctly use significant figures in addition and subtraction operations
- How to correctly use significant figures in multiplication, division and other operations

Page 2 - Review Questions:

- 26 review questions to help students master the use of significant figures
- Part A: Determining the number of significant figures in a value
- Part B: Rounding a value to a certain number of significant figures
- Part C: Performing mathematical operations while taking into account significant figures

- A full color-coded answer key for all review questions

- This product comes in 2 formats: a static PDF document and editable Word document.
- Download the full PDF preview to see EXACTLY what you are getting!

Relevant NGSS Science and Engineering Practices Addressed by This Product:

- Analyzing and Interpreting Data
- Obtaining, Evaluating, and Communicating Information

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Total Pages
3 pages
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