hto
3
Giáo dục | 9.0MB
Tap the screen to make counters in the columns. They can be exchanged up and down by selecting and dragging to different columns. Easily add and subtract in a visual manner that really shows how the column method works.
Đã cập nhật: 2018-03-20
Phiên bản hiện tại: 1.2
Cần có Android: Android 4.0.3 or later