4 Row Abacus
A compact 4-row abacus with 9 beads per row, allowing students to perform operations up to 9,999. This design intentionally omits the 5-bead found on traditional soroban models, making it an ideal starter tool for teaching the counting method and introducing beginning abacus skills to students with visual impairments. Its simple layout helps learners build a solid foundation in place value and basic arithmetic before advancing to more complex abacus systems.
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