Shark Swimathon: Level 3 : Subtracting Two-Digit Numbers (Mathstart)

Murphy, Stuart J.

ISBN 10: 006028031X ISBN 13: 9780060280314

Publisher: HarperCollins, 2001

Synopsis

As members of a shark swim team do laps to qualify for swim camp, readers can practice subtracting two-digit numbers to see how many laps are left to go. Simultaneous.

About this title

Reviews

Grade 1-3-The Ocean City Sharks swim team needs money to attend swim camp. Fortunately, a local bank has promised to send them if the sharks can swim a total of 75 laps by the end of the week. Each day, Coach Blue subtracts the number of laps completed from the total, providing examples of two-digit subtraction. Bright cartoons show a group of enthusiastic sharks carrying book bags and wearing colorful bathing suits. The coach writes the math problems out on a big sign and discusses each new subtraction, allowing readers to follow along and cheer the team on. Regrouping is included, but the concept of changing tens into ones is not fully explained. Still, this entertaining story would work well as a supplement to lessons on two-digit subtraction.
Melinda Piehler, North Tonawanda Public Library, NY
Copyright 2001 Reed Business Information, Inc.

Edition details

• Publisher: HarperCollins
• Publication date: 2001
• Language: English
• ISBN 10: 006028031X
• ISBN 13: 9780060280314
• Binding: Library Binding
• Illustrator: Cravath Lynne Woodcock
• Number of pages: 32