The Add & Subtract Abacus is a rainbow-colored abacus that helps children learn math skills and pattern and color recognition. With the addition and subtraction center boards, children can solve each equation by lining up the correct number of beads. It also encourages fine motor skills and hand-eye coordination.
Requirements: none
Contents: 1 Add & Subtract Abacus, 2 triangular center boards
Website: Add & Subtract Abacus