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Math Enrichment: Switching Addends Sums within 20, Number Talk Task Cards

(66 customer reviews)

$3.45

Challenge your students' thinking and stretch their number sense with these Switching Addends Number Talk Task Cards—perfect for math enrichment in the second half of the year. These brain teaser-style prompts push students to reason flexibly with numbers as they explore how switching one or more addends can create equal sums across two equations.

Category: Grade Level: Subject: Math Skills: , Resource Types: ,

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Description

Challenge your students’ thinking and stretch their number sense with these Switching Addends Number Talk Task Cards—perfect for math enrichment in the second half of the year. These brain teaser-style prompts push students to reason flexibly with numbers as they explore how switching one or more addends can create equal sums across two equations.

Ideal for whole-group number talks, math centers, or small-group problem solving, these tasks encourage deep thinking about addition, subtraction, missing addends, and the commutative property, all within sums to 20. While designed to be rigorous, the reward is in the light bulb moments as students begin to discover patterns, test strategies, and explain their reasoning.

What’s Included:

  • 32 Switching Addends Task Cards (designed to increase in difficulty)
  • Teaching Guide with Question Stems to support rich discussion
  • Math Talk Anchor Chart for classroom reference
  • 3 Student Recording Logs for flexible use during centers, independent work, or assessment

These tasks are ideal for Quarter 3 or 4 when students are ready for higher-level thinking and open-ended problem solving. Build meaningful math conversations and develop flexible thinking with this engaging and challenging resource.

Looking to build number sense all year long?

This resource is part of the 1st Grade Number Talks Bundle—a complete collection of mental math task cards designed to spark daily math conversations and develop flexible thinking from August to May.

✅ Download the preview to get a closer look at these templates and examples from my classroom!

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66 reviews for Math Enrichment: Switching Addends Sums within 20, Number Talk Task Cards

  1. cara N. –

    My students enjoy Number Talks. I enjoy giving them. It was a bit easy fro some of my students but for some it was still a challenge. It definitely worked and was a fun activity.

  2. Primarily Pehl –

    I wanted to implement more number talks into my daily math routine. This resource made it simple and students were very engaged! It’s fun to see them getting excited about talking about math.

  3. Rachel N. –

    This is such a great resource to use for Math Talks!

  4. citlali perez –

    It is a great resource that I will use with my students

  5. Catrina B. –

    Love using your different number talks it keeps students engaged

  6. Cari T. –

    The kids loved working on these.

  7. Tony S. –

    I loved this resource! It was a good math warm-up activity!

  8. Andrea Wallace –

    This was a useful resource as I started learning about number talks.

  9. Amy M. –

    These are the best products ever. Thanks so much.

  10. Frogtastic Firsties –

    I love using these for numbertalks

  11. Hope S. –

    Thank you

  12. Mckinnon Magic –

    I purchased these number talks after noticing my new school’s math curriculum doesn’t provide good opportunities for students to talk about math. I love that these are easy for me to use and implement and spark good conversation among students. Thanks for creating an amazing product!

  13. Anna P. –

    I love using this as a math warm up with my first graders! It is challenging for them and gets their brain thinking!

    I did however find an error on number 13.

  14. Corey J. –

    This was just what I was looking for.

  15. Raelee W. –

    Great warm up activity 🙂

  16. Fran mitt klassrum till ditt –

    So exciting to listen to my students discuss and share their mathematical thinking!

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