Curated OER
Equal Sums
Make addition a game! As learners become more familiar with addition, they can incorporate this equal sums matching activity into their practice time. The materials (included) are twenty-four cards, each with a simple addition problem...
Curated OER
The Dominoes Problem
In this dominoes puzzle, students, using dominoes, create a 4 x 4 square which has equal sums for each of the four sides. This one-page problem contains 1 problem.