1st Grade Subtraction As An Unknown Addend Math Centers for 1.OA.4

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  1. These are 1st grade math centers for EVERY 1st Grade Common Core standard. For every 1st grade math standard, I'vecraeted 3-5 math centers or math stations that your students will love!2nd Grade Math Centers: Find them for every standard here!These 1st grade math centers include board games, task ca
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Practice first grade subtraction as an unknown addend with these math centers! They align with 1st grade Common Core standard 1.OA.4 for students to work on solving subtraction facts using addition. They consist of matching activities, puzzles, and more! They are designed for you to use in your math centers and rotations.

Included are 4 different math stations for 1st grade subtraction as unknown addends:

  1. Swinging Subtraction: Students will complete a matching activity to match subtraction problems with unknown addend problems.
  2. Unknown Addend Puzzles: Students will complete two different puzzles to match subtraction problems with unknown addend problems.
  3. Cactus Cards: Students will use clip cards/task cards to complete subtraction problems/unknown addend problems.
  4. Road Trip Subtraction: Students will use these puzzles to match the subtraction problem, unknown addend, and missing number.

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26 pages
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to see state-specific standards (only available in the US).
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.


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