Related Series: Words are CATegorical, Sounds Like Reading®, Adventures in Memory, Food is CATegorical, Animal Groups are CATegorical
The Math is CATegorical book series by Brian P. Cleary & Brian Gable includes books The Action of Subtraction (Math Is CATegorical), The Mission of Addition (Math Is Categorical), A Fraction's Goal -- Parts of a Whole, and several more. See the complete Math is CATegorical series book list in order, box sets or omnibus editions, and companion titles.
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