Reinforce comparing numbers in your first grade classroom with this hands- on, Common Core- aligned math activity! Numbers in Orbit is a printable math center that will help your students practice mentally finding 10 more and 10 less. Use this center to supplement any standards- based, 1st grade math curriculum!

First Grade Common Core Math Standard: 

1.NBT.C.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count.

Directions: Choose a game board and a matching set of cards. Shuffle the cards and place them face down in a pile. Players take turns selecting cards and placing them in the correct spots on the boards. The first player to fill his or her column is the winner! Write your work on a record sheet.

This printable math center includes:

• 6 game boards and matching cards
• “Directions” page, storage label, and a record sheet
• Color and black & white versions to help you save on ink!

Check out the preview for an up- close look!

How to use this in your classroom:

1. Assign as an individual, partner, or small-group center!
2. Engage your students during targeted, small-group instruction!
3. Invite students to use when they finish other assignments early!
4. Prep your sub plans with ease- called away to a meeting? Unexpected sick day? Your students will love playing this math game individually, in partners/groups, or teacher vs. student on a document camera!
5. Fill extra time at the end of a lesson with a meaningful, standards-based activity!
6. Print black & white copies to send home with your struggling students for extra practice!

Find this center in the following bundles:

1. First Grade Math Centers BUNDLE | Compare Numbers
2. First Grade Math Centers MEGA BUNDLE | 64 Standards- Based Activities

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Freebie for Set 1: Good Clues, Bad Clues

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Freebie for Set 3: Put 'Em to Bed - for Google Slides(TM) & PowerPoint(TM)

Freebie for Set 4: To the Rescue

Freebie for Set 6: Fill the Nest

Freebie for Set 7: Super Star

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Find more engaging first grade math centers from Little Owl’s Teacher Treats:

Set 1: Addition Concepts

Set 2: Subtraction Concepts

Set 3: Addition Strategies

Set 4: Subtraction Strategies

Set 5: Addition and Subtraction Relationships

Set 6: Count and Model Numbers

Set 7: Compare Numbers

Set 8: Two-Digit Addition and Subtraction

Set 9: Measurement

Set 10: Represent Data

Set 11: Three-Dimensional Geometry

Set 12: Two- Dimensional Geometry

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