Addition by Heart is a visual way to master foundation math facts in just 5 minutes a day!
Our cards use colorful images and cutting-edge science to help you learn addition facts. Plus, there are games to unlock and explore, so you can keep playing with your cards even after youve mastered the facts.
3 DECKS
Bonus! Reference deck for teen numbers Includes a guide for _spaced repetition_ scientifically proven as the best way to use flash cards to master facts.
Extra games and explorations mean Addition by Heart becomes a play-deck once each deck is mastered.
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