꾸러미:
ab.abac.abacus
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지원되는 android 버전:
2.2 이상
업데이트 날짜:
2014년9월18일
Indian Abacus Mental Arithmetic Education for Brain skills: The Abacus over the last 2000 years had evolved to the modern but still a manual version popularly called Zhusuan or Soroban.
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