MULTIPLICATION ABACUS DEVICE
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
May 13, 2024
filing date -
Mar 24, 2022
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Abstract
A multiplication abacus device is provided, which includes a main body with a result display area, where the result display area has calculation result bits arranged in a matrix, the calculation result bits have numbers for displaying a calculation result, a plurality of sliding members, arranged in a matrix that can slide horizontally and longitudinally on the main body, and located on the calculation result bits, where adjacent M rows of sliding members slide longitudinally, and adjacent N columns of sliding members slide horizontally. After the sliding members do not obstruct one row of calculation result bits and do not obstruct one column of calculation result bits, a number of the calculation result bits in a crossed position is a calculation result of M×N. Through the above technical solution, a technical problem of learning multiplication in existing technologies being abstract and not intuitive enough has been solved.
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