lesson Write a review lesson Write a review beta EdBrAIn It EdBrAIn uses AI to customize lesson resources for your students’ needs. Estimation of Whole Number Addition & Subtraction Share Share On Facebook Share On Twitter Share On Pinterest Share On LinkedIn Share On Microsoft Teams Email Copy link Share Share On Facebook Share On Twitter Share On Pinterest Share On LinkedIn Share On Microsoft Teams Email Copy link CK-12 Subject Math — Number and Operations in Base 10 Grade Level Grades 3-5 License About Resources Reviews Related About This Lesson Students will learn how to round whole numbers in order to estimate sums and differences. Resources External resources http://www.ck12.org/arithmetic/Estimation-of-Whole-Number-Ad... Website Legacy Embed Reviews Be the first to submit a review! Advertisement More from this Contributor Lesson Decimal Multiplication Grades 3-8 CK-12 Lesson Decimal Subtraction Grades 3-8 CK-12 Lesson Combinations of Decimal Money Amounts Grades 3-8 CK-12 Lesson Decimal Addition Grades 3-8 CK-12 Lesson Introduction to Decimals Grades 3-8 CK-12 Lesson Comparison of Integers with Absolute Value Grades 6-8 CK-12