What do you rely on to dial the beads when counting?

In order to make abacus calculation correct and fast, we should not only master four calculation methods, but also pay attention to fingering, that is, the division of fingers and the method of dialing beads during abacus calculation. When using the seven-bead abacus, you usually use the thumb, index finger and middle finger of your right hand to dial the beads in coordination.

The division of labor between the three fingers is: thumb: dial the bead up. Index finger: Pull down the bead. Middle finger: move the upper bead up and down. The ring finger and the little finger should naturally bend to the palm of your hand to avoid touching the abacus. When the "lower bead" is dialed upward and the "upper bead" is dialed downward, you can dial it with your thumb and middle finger at the same time. When the "lower bead" is dialed downwards and the "upper bead" is dialed upwards, you can dial the middle finger and the index finger at the same time. When both the upper bead and the lower bead need to be pulled down, generally, the upper bead should be pulled down against the beam first, and then the lower bead should be pulled off the beam. If the "lower beads" are all off the beam, you can also dial the middle finger and the index finger at the same time. When it is necessary to push the "upper bead" and "lower bead" upward, generally, the upper bead should be pushed against the beam first, and then the upper bead should be pushed away from the beam.

You can also dial with your thumb and middle finger at the same time. When calculating the abacus, you should first clear it, that is, dial the beads against the box first, and then dial them in numerical order from the high position.

Commonly used terms are: up and down: it means to lean the beads against the beam. If you dial 2, 5 (or 5) and 6. Go: It means to lean the beads against the border. If you dial 2, 5 and 6. Enter one: it means 1 before dialing one digit. Last one: indicates the previous one 1. In addition: used with "Back" to indicate that the remainder is set in this file.