Looking for an engaging way for your students to practice rounding whole numbers? This Rounding Whole Numbers Crack the Code activity will have your students rounding to nearest tens and hundreds and solving puzzles to unlock 3 locks. This digital activity includes 9 rounding whole numbers problems in a no-prep Google Sheets digital activity.

This activity has three digital “locks” your students will open by rounding to the nearest tens and hundreds and using the puzzle directions included on each page.

What’s included in Rounding Whole Numbers Crack the Code?

• 1 Interactive Self-Checking Google Sheets Activity with 4 pages
• Printable student recording sheet with problems included
• Printable fast-finisher activity: Rounding Vocabulary Word Search
• Crack the Code Answer key
• Word Search Answer key
• Teacher Instructions

Your students will love practicing rounding to the nearest tens and hundreds while trying to crack the code. They can work in small groups or independently, and because this activity is self-checking, you’ll have plenty of time to work with a small group!

Prep is quick and easy... Just print the student recording sheets, assign the Google Sheet in your LMS, set the linked timer (if you choose), and you're ready for a motivating independent activity!

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