A perfect math center idea, that can facilitate the use of math manipulatives such as unifix cubes or base-10 blocks!
Print these on colored paper to easily distinguish sets of puzzles. I have prepared these for my first graders and made each page a separate set. To hold them accountable for their learning, I have included a recording sheet for the addition and subtraction puzzles.
These puzzles focus on two digit addition within 100 and subtraction within 20.
Mr. L's Classroom
Keywords: Math center idea, addition puzzle, subtraction puzzle, difference, two digit addition