Making a Sail for a Pirate Ship

Will you help Patrick find the treasure and win the infamous pirate ship, The Pickled Pearl?
Patrick Pirate is a lowly cabin boy. Grandpa Pirate is the most fearsome pirate in all the seven seas. When Grandpa Pirate is ready to retire, he gives Patrick a quest to prove that he's ready to captain the infamous pirate ship, the Pickled Pearl.
How will Patrick complete the quest? By using math, that's how!
The Pirate Math series shows characters using math in practical (and piratical) ways. It uses exciting stories to teach kids cool math concepts.
The math skills in this book are multiplication, estimation, and beginning geometry.
So, all aboard mateys! Get ready for a fun and educational adventure!