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Kids mix up a potion to help Professor Beardo grow out his beard, and practice place value, in this multi-digit addition game.

Kids solve two- and three-digit addition problems by regrouping in order to help the Professor grow out his beard.

All aboard! Kids solve addition problems on a number line using 1, 10, and 100 unit manipulatives.

Kids help Elliott prepare treasures for her museum by answering word problems by using a tape diagram.