Do you have students who always finish early?  How about the ones who say they already know the topic at hand?  Consider replacing integers with fractions or decimals in their practice problems.  Why not encourage them to try arithmetic with binary…just like computers do!  Check out this Byrdseed.com link for some great ideas on using complexity and novelty in math differentiation!  Happy Differentiating!

http://www.byrdseed.com/differentiate-math-with-complexity-and-novelty/