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Front-End Estimation of Sums and Differences

Core Standard: 3.OA.D.8

Aligned To Common Core Standard:

Grade 3 Operations- 3.OA.D.8

Printable Worksheets And Lessons

AnswersAnswer Keys

View Answer Keys- All the answer keys in one file.

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Homework Sheets

A really good mix of challenges can be found here for you.

Practice Worksheets

Practice sheets two and three are very unique for this topic. Give them a try!

Math Skill Quizzes

This are very standard quiz formats to work with.