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Addition and Subtraction with Regrouping Activities – Math Mystery


Students become detectives in this immersive, hands-on addition & subtraction experience. This resource includes 4 interactive addition and subtraction with regrouping activities, ideal for review at the end of your addition & subtraction unit. Activities are ideal for 2nd grade but can be easily adapted for 3rd grade. Activities cover addition and subtraction with regrouping using various methods and strategies.

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Who stole the class pet, Mr. Fluffins? Find out in this math mystery! This activity pack includes 4 hands-on, interactive math review activities to help reinforce and review addition and subtraction with regrouping.

These addition and subtraction with regrouping activities are low prep and designed to meet 2nd grade standards, but can easily be adapted for 1st or 3rd grade. Can be used in small groups, whole group, or individually as centers!

*NOTE: This resource is part of a bundle. If you would rather purchase the bundle for 20% off, simply click here: Math Review Activity Bundle*


  • 7 sets of clues leading students to each activity
  • 4 hands-on addition & subtraction regrouping activities


Standards addressed in this resource:

  • CCSS: 2.NBT.B.7, 2.NBT.B.8, 2.NBT.B.9, 3.NBT.A.2, 4.NBT.B.4
  • TEKS: MA.2.4.A, MA.2.4.B, MA.2.4.C, MA.2.4.D, MA.2.7.B, MA.2.7.C


All math review units include thorough instructions for set up and answer keys when applicable. If you’re feeling creative, math reviews make GREAT room transformations! Please share any pictures with me via Instagram (@theaverageteacher).

If you like this resource, I would appreciate it if you would leave a review! You may also want to follow me on Instagram or Facebook to stay updated with new products, blog posts, and other math tips. If you have any questions, issues, or suggestions – please send me an email at and I would be happy to assist you!

Thanks so much for your purchase!


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