Shark swimathon - MathStart Author:Stuart J Murphy Shark Swimathon The Ocean City Sharks have to swim 75 laps by the end of the week, and every day they figure out how many laps are left to go. Swimming and subtraction are all part of the fun!
A story-lesson in subtracting two digit numbers. Ideas for games to extend the concepts presented into a child's everyday life can be found at the back of the book.