Math Curriculum
Level C
Unit: Number Base Ten (Decimals)
Lesson 6.5.3 Adding and Subtracting Decimals with Few Non-Zero Digits
Instructor Materials
- Teacher guide
- Slides
- Practice Problems resource
- CCRS standard: 6.NS.3
- Learning goal: Add or subtract decimals and explain the reasoning (using words and other representations). Comprehend the term “unbundle” means to decompose a larger base-ten unit into 10 units of lower place value (e.g., 1 tenth as 10 hundredths). Recognize and explain (orally) that writing additional zeros or removing zeros after the last non-zero digit in a decimal does not change its value.
- 6.5 Assessments and Related Lessons
Student Materials
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).
3. The Illustrative Mathematics® name and logo are not subject to the Creative Commons license and may not be used without the prior and express written consent of Illustrative Mathematics®.
4. This site includes public domain images or openly licensed images that are copyrighted by their respective owners. Openly licensed images remain under the terms of their respective licenses. See the image attribution section for more information.
Get the free download of Adobe Acrobat Reader.