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(ˈtʃɪz ənˌbɒp)
a system of basic arithmetic calculations, esp. addition, counting on one's fingers.
[1975–80; < Korean chi- finger + san(p)pǒp calculation, < Middle Chinese]
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References in periodicals archive ?
Other findings were nine of the second-graders used the erroneous "subtract smaller from larger bug" and five first-graders used Jarimatika (Chisanbop).