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AL Abacus Standard is Made in the USA!* This 9-3/4" x 7-1/2" (24.75 cm x 19.25 cm) plastic abacus is grouped in 5s and 10s to encourage quantity recognition and visualization. On one side the child performs basic operations and learns strategies for mastering the facts. On the reverse side, trading is emphasized.
The interactive AL Abacus is available for you to explore on our website. You can work with addition and multiplication using trading and quantity recognition. Place value cards and the math way of counting are also shown. An electronic version from NCTM is available for you to explore.