Addition by Heart

Addition by Heart cards use colorful representations and cutting-edge brain science to help master addition facts. Plus, there are games to unlock and explore, to extend the play after you've mastered the facts.

3 DECKS:
Deck 1 - Dice Patterns (25 cards)
Deck 2 - Ten Frames (75 cards)
Deck 3 - Bar Diagrams (32 cards)
Bonus! Reference deck for teen numbers

Includes a guide for using spaced repetition to practice the facts- scientifically proven as the best way to use flash cards to master facts.