KoAbacus - Mental Arithmetic

202
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KoAbacus 1.0.45 - 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

* Start Button LongClick - Abcus Clear
* Menu Button LongClick - Volume Control (4.0 ~)
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What's New

Menu Button
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Additional Information

Updated
February 7, 2019
Size
1.2M
Installs
50,000+
Current Version
1.0
Requires Android
2.3 and up
Content Rating
Everyone
Permissions
Offered By
aboard
Developer
Asan, Chungnam, Korea
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