Abacus App 應用程式
A simple abacus app supporting 6 types of abacus (soroban, suanpan, binary, Russian, school & rekenrek) as well as a variable number of rods on each abacus.
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Abacus App APK
Abacus App
1.3.4
一個簡單的算盤應用程序支持6種類型的算盤。
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