Ungrouping and Regrouping Addition and Subtraction Sort

Help your students master addition and subtraction with 2- and 3-digit numbers using these fun, hands-on sorting games! Perfectly aligned with Math Expressions (but great for any math classroom), this activity helps students practice identifying when to regroup or ungroup — and builds a deeper understanding of place value.

Students will solve 12 real-world word problems and sort them into the correct category:

🔹 Regroup a 10? 100? Both?
🔹 Ungroup a 10? 100? Both?
🔹 Or none at all!

These games are perfect for math centers, partner work, or small-group reteaching and review before assessments.

✨ Included in This Resource:

-Game 1: Regroup a 10? 100? Both?
-Game 2: Ungroup a 10? 100? Both?
-12 word problem task cards in each sort
-4 category headers for each sort
-Student recording sheet for accountability
-Answer key for easy checking
-Directions for setup and play

Why Teachers Love It:

-Aligned to Math Expressions
-Strengthens place value understanding
-Builds confidence with regrouping and ungrouping
-Encourages mathematical reasoning through word problems
-Great for 2nd–4th grade review

Perfect for: math centers, partner games, spiral review, or intervention groups!

⭐ Loved this resource? Please leave a review to let me know how it worked for your students!

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