The Biggest Numbers in the World: Activity Book for Kids who love Big Numbers | For Children with Hypernumeracy and Hyperlexia | Counting Coloring ... | American Number Names | 8.5 x 11 Inches

My 5yo is obsessed with numbers and this is by far his favorite book. He brings it everywhere and asks any adult he can to read him the huge numbers and discuss how many 0's they have.

My 4 year old LOVES numbers. He will think this is super awesome! I bought it for his Christmas stocking. The number pages go from 100 to googolplex. There’s pages at the beginning that index all the numbers in the book. Super awesome book!