New from the author of the bestselling Words Are Categorical series comes this book that introduces basic math concepts to young readers. This first title covers the concept of addition and its key terms. Full color. n nIn the first book of the Math Is Categorical(R) series, readers will become familiar with the concept of addition and its key terms. The author and illustrator of the best-selling Words Are CATegorical(R) series use their trademark sense of humor to add up the fun n