Math Flips

Math Flips are flashcards with a problem on the front and a similar problem on the back (instead of a problem and an answer) to encourage relational thinking rather than answer-getting.

Math Flips are free here: 

Math Flips PDFs and Google Slides

Math Flips are inspired by Chrissy Newell, who created a number talk with two related problems and the question sequence “How many? How do you know?” and “How many NOW? How do you know?”, Annie Fetter and Joe Schwartz, who say “Ask about ideas, not answers,” the amazing number sense routines shared by Steve Wyborney (www.stevewyborney.com), the book Math Fact Fluency by Jennifer Bay Williams and Gina Kling, and YOU, who can send ideas/feedback (email or twitter) or make your own with these templates. Check out these Math Flips made by people like you.

Math Flips are also available as Google Slides, thanks to Erin Sutton and Amy Snider. These slides can be copied into other online programs for use with students, such as Jamboard.

Math Flips PDFs and Google Slides

There are currently 28 decks covering the 4 operations:

  • Subitizing and Plus-Minus 1
    • Subitizing Flashcards
    • Plus and Minus 1 within 10
  • Addition within 20
    • Count On within 10
    • Count On within 20
    • Doubles and Near Doubles
    • Combinations of 10
    • Teen Numbers
    • Make 10 with 3 Addends
    • Make 10 with 2 Addends
  • Addition within 100
    • Plus and Minus 10 and 1 with 2 Digit Numbers
    • 2 Digit Plus 1 Digit
    • 2 Digit Plus Multiples of 10
    • 2 Digit Plus 2 Digit
  • Subtraction within 20 and 100
    • Subtraction within 10
    • Subtraction within 15
    • Subtraction within 20
    • Subtraction within 100
  • Multiplication – Single-Digit
    • 2s, 5s, and 10s with Commutative Property
    • Doubling with 4s, 6s, 8s
    • Friendly Numbers with 3s and 6s
    • Friendly Numbers with 4s and 9s
    • Hardest Facts
  • Multiplication – Multi-Digit
    • 1 Digit by Multiple of 10
    • 1 Digit by 2 Digit Partial Products
    • 1 Digit by 2 Digit Over and Subtract
    • 1 Digit by 2 Digit 5 is Half of Ten
    • 1 Digit by 2 Digit Factoring
  • Division
    • Division within 100

Sara VanDerWerf says: Mathematicians notice, describe, and generalize patterns. Each Math Flips deck focuses around a strategy or idea that can be noticed, described, and generalized. 

Want help using Math Flips? Take this short online workshop to get the most out of Math Flips:

Learn More or Register