Today I decided that I was going to set up a TeachersPayTeachers account. I have used the following activity in my classroom quite a bit this year and the kids absolutely love it. The one that I just put up is for positive numbers. While the numbers start off pretty basic, once the students start getting towards the top, the numbers start getting into the hundreds. Great resource for students to use without the use of a calculator.
I plan on creating a whole set up them including negatives, fractions, decimals. I really can adapt these for both my lower level and honors students.