There are a variety of resources provide below to enhance your understanding of accuracy, precision, and significant digits (also called significant figures, or SigFigs), and plenty of opportunities to practice those skills.

**Reading Resources (with practice problems):**

- Combined PDF of rules and practice problems for working with significant digits from Math-Aids.com
- Appendix A (pages A1-A3) in our textbook
- Math Is Fun web page covering Accuracy and Precision
- Math is Fun web page covering Rounding to Significant Digits

Khan Academy section with videos and practice problems

Videos to review the concepts of accuracy and precision (TedEd) and two videos by Tyler DeWitt reviewing the concepts and working through practice problems: