on the abacus 在算盘上
reckoning by the abacus 珠算 ; 用算盘计算
The invention of Abacus 算盘的发明
The Vitality of Abacus Calculation 谈谈珠算的生命力
In response to declining math skills among their students, some Japanese schools are bringing back an ancient calculating device—the abacus.
为了应对学生数学能力的下降,日本的一些学校重新使用起一种古老的计算工具——算盘。
Why is the abacus such an effective teaching device?
为什么算盘有效地帮助了教学?
Such fine calibrations may date back to the use of the abacus, and to an old Chinese convention that assumes a 360-day year for the purpose of reckoning interest payments.
如此精细的调整可追溯到算盘的使用,追溯到中国的一个古老传统,即假设一年为360天,以达到简化利息支付的目的。
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