This is a four page file--two pages in color and two pages in black and white. The key words can be given to the students to keep in their math folder. It can also be enlarged on a poster machine or photocopy machine and placed on the classroom wall.
This is just a simple reference to help students spell number words correctly. The page can be kept in a reference folder or homework binder. You can use a poster machine to enlarge the student version, or you can put the pages that have the number words in a big font together like a puzzle.