Mental abacus
The abacus system of mental calculation is a system where users mentally visualize an abacus to do calculations. No physical abacus is used; only the answers are written down. Calculations can be made at great speed in this way. For example, in the Flash Anzan event at the All Japan Soroban Championship, champion Takeo Sasano was able to add fifteen three-digit numbers in just 1.7 seconds. The standard abacus can be used to perform addition, subtraction, division, and multiplication; the abacus can also be used to extract square-roots and cubic roots.
Wikipage disambiguates
Wikipage redirect
primaryTopic
Mental abacus
The abacus system of mental calculation is a system where users mentally visualize an abacus to do calculations. No physical abacus is used; only the answers are written down. Calculations can be made at great speed in this way. For example, in the Flash Anzan event at the All Japan Soroban Championship, champion Takeo Sasano was able to add fifteen three-digit numbers in just 1.7 seconds. The standard abacus can be used to perform addition, subtraction, division, and multiplication; the abacus can also be used to extract square-roots and cubic roots.
has abstract
The abacus system of mental ca ...... square-roots and cubic roots.
@en
珠算式心算，是指以珠算为学习基础，通过反复实践珠算的计算过程 ...... 心算推广者称其对于老年人的手脑训练及克服失智问题有显著作用。
@zh
Link from a Wikipage to an external page
Wikipage page ID
Wikipage revision ID
720,872,556
hypernym
comment
The abacus system of mental ca ...... square-roots and cubic roots.
@en
珠算式心算，是指以珠算为学习基础，通过反复实践珠算的计算过程 ...... 心算推广者称其对于老年人的手脑训练及克服失智问题有显著作用。
@zh
label
Mental abacus
@en
珠心算
@zh