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Last updated

29 March 2026

pdf, 1.38 MB
pdf, 1.38 MB

Students struggling with subtraction within 20?

These math center puzzles are designed to help students practice subtraction within 20. The hands-on puzzles engage students in matching visual models to a written equation. In doing so, they build their number sense, counting skills, and comprehension of subtraction.

The cards are split into two difficulty levels, making it easy to differentiate.

The cards are visually accessible, making them easy for young students to understand and play independently.

As they solve the puzzles, students will:

  • Solve subtraction equations within 20
  • Match picture models to written equations
  • Count total objects and crossed-out objects accurately
  • Use counting strategies to find how many are left
  • Strengthen their conceptual understanding of subtraction

**Includes: **

  • 28 subtraction puzzle cards
  • 2 difficulty levels marked with stars
  • teacher notes with suggestions for modeling and differentiation

**How to Use: **

  • math rotations
  • independent practice
  • partner work
  • small group review
  • early finisher activity

Targeted Grade Levels:

  • Year 2 / 1st-Grade (whole class, when practicing subtraction within 20)
  • Year 3 / 3rd 2nd Grade (remediation for students who need help with number sense)

Get this resource as part of a bundle and save up to 31%

A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

Bundle

Addition & Subtraction Within 20 Math Puzzle Bundle | 1st Grade Math Centers

Are your students struggling with addition and subtraction within 20? This bundle includes 4 puzzle-based math centers that help students build number sense through picture models, number bonds, equations, and word problems. Designed to build number sense, these puzzles have students match visual representations to number bonds, word problems, and addition/subtraction equations within 20. **The puzzles are built for 1st graders. The... ** * Visuals are clear and spaced far enough to make finger counting easy for students who need it. * Word problems are repetitive, and they reuse words to help reduce cognitive load for students who are still learning how to read * Addition and subtraction puzzles reference and use doubles and doubles +1 strategies throughout * Models are arranged in groups of 5, adding easy scaling for students who are ready to skip count and use mental math **This bundle includes 4 math centers:** * Addition Puzzles Within 20 * Subtraction Puzzles Within 20 * Part-Part-Whole Number Bond Puzzles Within 20 * Word Problem Puzzles Within 20 **Differentiation:** All puzzles include 2 difficulty levels for easy differentiation. **Targeted Skills: ** * Addition within 20 * Subtraction within 20 * Part-part-whole number bond relationships * Matching picture models to equations, number bonds, and word problems * Building number sense and conceptual understanding of addition and subtraction within 20 **What’s Included:** * 4 puzzle-based math centers * 28 puzzles in each resource, for a total of 112 puzzles in the bundle * 2 difficulty levels in each resource for easy differentiation **How to use:** * Math centers * Small group instruction * Partner work * Independent practice * Early finisher work * Review of addition and subtraction within 20 * Intervention and extra support for students who need more practice with visual models and math language **Targeted Grades: ** These math puzzles are made and intended for Grade 1. Some first star addition and subtraction puzzles may be suitable for enrichment in Kindergarten. All of the 1 & 2 star puzzles can be used for BoY 2nd Grade fact fluency and intervention.

£7.80

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