Math Curriculum
Level D
Unit: Percent
Key Lesson 7.4.10 Tax and Tip
Lesson topic: Percent applications
Instructor Materials
- Teacher guide
- Slides
- Practice Problems resource
- CCRS standard: 7.RP.3
- Learning goal: Comprehend “sales tax” and “tip” as two contexts that involve adding a percentage of the initial amount. Explain (orally) how to calculate the total cost including a tax or tip, given the “subtotal” and the percentage. Explain (orally) how to determine the percentage of the subtotal that a tax or tip is.
- 7.4 Assessment and Practice Problems
Student Materials
Related Lessons
Review and Extend
Use these supplemental lessons if needed after teaching this key lesson.
Used with permission:
1. IM K-5 Math was originally developed by Open Up Resources (OUR) and authored by Illustrative Mathematics® (IM), and is copyrighted 2017-2019 by Open Up Resources. It is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). OUR's K-5 Math Curriculum is available at https://openupresources.org/math-curriculum/.
2. Adaptations and updates to IM K-5 Math are copyrighted 2019 by Illustrative Mathematics®, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
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