Download KoAbacus - Mental Arithmetic apk 1.0 free for Android smartphone

11 Aug
KoAbacus - Mental Arithmetic

Posted by aboard in Education | Aug. 11, 2016 | 8 Comments

Apk file size: 2.1 MB

KoAbacus 1.0.40 - Korean Abacus & Mental Arithmetic

The abacus is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere.

* button function
6,5,4,3,2,1 : - positional number
+ , - , x , / : the four arithmetical operation & new number genernation
9, 8, 7, 6, 5 : bounds
stat & end : result

* Menu Button
- Auto Test : Count, Delay
- Speech : Start, End, +, -, *, /
- Sound : Click Sound

* StartButton LongClick - Abcus Clear
* PlusButton LongClick - Volume Control (4.0 ~)

Whats new

    click sound menu

aboard part of our Education and have average installs from 10000 to 50000. Last Update Aug. 11, 2016. Google play rating is 80.4878. Current verison is 1.0. Actual size 2.1 MB.

Download koabacus-mental-arithmetic.apk 2.1 MB


Agung Anggara

Xperia Good apps, but i don't know how to use abacus to calculate.

Muji yanto

How it's fun …!

Chal Li

Excellent application but please fix layout issue in nexus 7, the lower half of the lower beads is truncated by the box and not displayed. This issue is not repro in my sony experia U. Also please consider adding more bounds and releasing a payable version without ads.

Samarth Yadav

Ucmas is good for maths

deepak bisht

gud for children its good & mentally powered mind use it

Dakshraj Barad

Its good I am studying ucmas is 2 level and some confusion then I take help

sukhwindersingh lahoria

outstanding I can't learnt maths easily then I join ucmas I practice with this app now it is possible to learn maths ........u also installed this app........bye...byeeeeeeeeeeeeeeeeee......

Minh NN

Quite confusing UI While the lower screen is clear, the upper part is confusing and how to use is unclear at once, needs time to get how it works but not clear. Not good for kids learning this either!

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