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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