Sir Cumference and All the King’s Tens. A Math Adventure

By: Cindy Neuschwander, 

Age: 6+  | Published by: Charlesbridge

ISBN: 9781570917271

When Sir Cumference and his wife, Lady Di of Ameter, host a massive surprise birthday party for the king, they must figure out a quick way to count all the guests that are in attendance. Simultaneous.