This activity encourages retention of common math facts. Use this to help solidify the knowledge of addition and subtraction facts.
Print 4 per page and allow students to make small cards to use to study on a regular basis.
Use for elementary and secondary grades. Whenever and with whomever there is a need, use this. I worked to make the page more "mature" for an older audience.
Students will run into issues throughout math if they don't know their fact families. Here's a resource to help assist with building a strong math student.