Chinese Abacus for Kids (Print-in-Place / Maths Tool)

cults3d

The Chinese abacus, also known as the suanpan (算盤/算盘, lit. "calculating tray"), is typically 20 cm (8 in) tall and comes in various widths. It usually has more than seven rods. The beads are counted by moving them up or down towards the beam; beads moved toward the beam are counted, while those moved away from it are not. One of the top beads is 5, while one of the bottom beads is 1. Each rod has a number under it, showing the place value. The suanpan can be reset to the starting position instantly by a quick movement along the horizontal axis to spin all the beads away from the horizontal beam at the center. ~ by Wikipedia.org