I print these puzzle pieces on Astrobrights, laminate them, and cut them. I put them into a small container and put them out for one of Math Workshop rotations.
My kids LOVE it!
Students match up the equation with the correct sum or difference.
If you choose to have students work in pairs, one student will solve a card and the other student has to check their answer by using the inverse operation!
I have included a color and black and white version for your printing preference!