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# 3.NBT.1 Common Core Activity

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### How to teach Rounding

In this 3.NBT.1 Common Core Activity, studentsuse place value understanding to round whole numbers to the nearest 10 or 100.

This lesson teaches students how to round numbers to the nearest 10 or 100. This lesson is perfect for small group, math centers or independent practice.

Students match the ice cream to the cone by rounding according to the

directions (to nearest 10 or 100). Then, continue practicing rounding with the provided worksheet individually or with a partner.

### Other resources to use with this 3.NBT.1 Common Core Activity

If you are using this lesson, your students are probably learning about rounding.

Use this Rounding to Nearest Ten Worksheet as an additional resource for your students.

You may introduce this lesson by asking questions like “Which ten is this number closer to?” about specific points on a displayed number line. Then, distribute ice cream and cone rounding cards for students to practice rounding. As students work, circulate around the classroom to listen to discussions students have about rounding. After the activity, share students discussions that you heard to promote rounding skills. Finally, students can continue their practice using the provided worksheets.

Be sure to check out more Rounding Worksheets and the entire Third Grade Common Core Workbook.