3 years & up. Give children a hands-on approach to learning simple math concepts with building blocks that teach math as they play. The hardwood blocks are graduated in size with the higher the number the higher value of the block. No matter how the blocks stack up, the numbers add up. SumBlox hardwood blocks helps children learn addition, subtraction, multiplication, and fractions. Includes 38 hardwood blocks and 36 activity cards.
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