Brian P. Cleary and Brian Gable, author and illustrator of the bestselling Words Are CATegorical® series, bring their trademark sense of humor to the subject of subtraction, proving that sometimes, less is really more. The comical cats show young readers the basic concept of taking one number away from another. Funny illustrations and examples make learning to subtract as easy as 3, 2, 1!
A Smart and Funny Way to Introduce the Concept of Subtraction to Children  By Justine Olawsky
How do I love the "CATegorical" series by Brian P. Cleary? I could add up the ways for you, but this particular book is about subtraction . . . and it's a hoot!
What is so delightful about "The Action of Subtraction" is that it presents a mathematical concept to children with both uproarious verse and witty illustrations; these work together to bring the dreariness of math into the light in a way that completely engages my fouryearold. Together with its partner book, "The Mission of Addition," Mr. Cleary and illustrator Brian Gable have contributed a true treasure trove for two foundations of mathematics education. This mathophobic mom appreciates that immensely.
Again, this book is about ideas. It is not a workbook or activity book in any sense. It is not a math textbook for the preK  K crowd. BUT, it is the kind of book that makes great storytime reading  whether midday or bedtime. My child loves these books!
Finally, a sensible way to explain subtraction  By Emily J. Morris VINE™ VOICE
Brian P. Cleary is pretty much the master of teaching math concepts to hyper and psychotic children. Because that is exactly what this book ishyper and psychotic and absolutely brilliant. A couple years of teaching 1st grade math has taught me that subtraction is rather a difficult concept. Thankyou Cleary for making it somewhat easier in this bright and cheery little book that celebrates the spirit of subtraction with the teaching of the concept and the jargon using plenty of hilarious examples.
The Action of Subtraction (Math Is Categorical) Author: Brian P Cleary List Price: Sale Price: $4.62 You save: $2.33 (34%) See Reviews For This Product 

DescriptionThe author and illustrator of the bestselling Words Are CATegorical(TM) series brings their trademark sense of humor to the subject of subtraction. Rhyming text filled with funny, countable examples shows what it means to take one number away from another... 
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