How much money do I have left if I buy a soda? By the end of the week, how much of my daily allowance will I be able to save if I don't?
Or you can usually find textbooks and workbooks at the public library, where you can also copy any worksheets that you want to use.
Review subtraction of 2 numbers whose sums would be 18 or less
Another important point I keep in mind is that I never want this regular math review time to take up and hour of class time. I want it to be quick but effective. This is not instructional time, but time for the students to review material they have already learned.