Featuring a collection of high-flying, swooping, and diving birds, a picture book provides a fun and easy introduction to math, including subtraction, addition, and counting, through rich illustrations and simple equations.

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Throughout the day, a child notices, counts, and compares numbers of items, such as how many boys and girls are on the playground and how many more girls there are than boys, until there is finally something that cannot be counted.

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**This is not just another counting book.**

In this book you must look carefully at the pictures. You must count. And count again.

**This is a counting book with a difference.**What is the difference? The difference is what is left over when you subtract one group from another group.

**Why else is this a counting book with a difference?** Because besides counting, you must read and look and think, too. Because there are many things to discover and puzzle out. Because this book is fun!

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