パッケージ:
com.ssaurel.abacus.pro
ダウンロード:
50
サイズ:
3.7 MB
Android 要件:
4.0.3 以上
アップデート:
2018年11月24日
Abacus lets you to learn to count like in the past directly on your smartphones and tablets. The Abacus is a calculating tool, also called a counting frame, that was used in Europe, China, Japan and Russia, centuries before the adoption of the written Hindu-Arabic numeral system.
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