It's hard work, taking care of 5 little ducks. But when each little duck comes home with a friend -- oh, no! Now it's double the ducks and double the work. How can 1 little boy get everything done? Understanding how to double numbers helps children master both addition and multiplication. Fun, friendship, and lots of ducks make learning this essential skill both easy and entertaining.

 

This book features in the following series: Mathstart, Mathstart 1 .

This book has been graded for interest at 4-8 years.

There are 40 pages in this book. This book was published 2016 by HarperCollins Publishers Inc .

Stuart J. Murphy is a visual learning specialist with a strong background in design and art direction. He also has extensive experience in the world of educational publishing. Drawing on all these talents, Stuart Murphy brings a unique perspective to the Mathstart series. Kersten Hamilton is the author of over twenty-five books. She lives in Albuquerque, New Mexico. BLUE BOAT is her fifth book for Viking. Visit her at kerstenhamilton. com. Valeria Petrone has worked as an illustrator for publishers in the United States, the United Kingdom, Japan, France, and her native Italy, where she now lives. Visit her at www. valeriapetrone. com.