Receive FREE SHIPPING on orders over $99 placed on the Didax website and shipped within the contiguous US. No promo code is required to receive this offer.
The order total for free shipping is calculated after any discounts are applied. Orders containing any Eureka Math, Big Ideas, Zearn, Math Perspectives, Didax Classroom and/or Investigations Kits DO NOT qualify for free shipping.
Free shipping valid ONLY on orders placed on the Didax website shipped within the contiguous US. Our regular shipping policies applies to other orders.
Receive FREE SHIPPING on orders over $99 placed on the Didax website and shipped within the contiguous US. No promo code is required to receive this offer.
The order total for free shipping is calculated after any discounts are applied. Orders containing Eureka Math Kits DO NOT qualify for free shipping.
Free shipping valid ONLY on orders placed on the Didax website shipped within the contiguous US. Our regular shipping policies applies to other orders.
Master Subtraction with Visual, Connected Learning
Master subtraction facts with a visual, engaging approach that builds understanding and fluency in just 5 minutes a day. Subtraction by Heart uses colorful visual models and spaced repetition to help children develop quick, accurate recall of foundational math facts while making meaningful connections between numbers.
Includes 3 decks featuring different visual representations of subtraction:
Deck 1: Number Paths, 55 cards
Deck 2: Number Lines, 45 cards
Deck 3: Bar Diagrams, 45 cards
Together, the three decks provide 145 cards and multiple ways to see and understand subtraction concepts, helping learners build flexibility and confidence.
Once facts are mastered, the learning continues with included games and explorations that encourage further practice, problem-solving, and mathematical thinking.
Features:
Learn subtraction facts in just 5 minutes a day
Uses visual models to build conceptual understanding
Spaced repetition supports long-term retention
Three unique visual approaches to subtraction
145 cards across three decks
Bonus games and explorations extend learning beyond fact mastery