These units include many slides covering comparing and ordering numbers--key terms, instruction, examples, practice, quiz, and key. The units differ mainly in the range of numbers used (as seen in the individual titles). Click on a specific unit for a more detailed description and preview. :) P.S. Did you know that you can earn a small credit to your TPT account by rating/reviewing your purchases? I'd be ever so grateful if you'd return to give me some feedback; and, hey, every penny counts when