learn
Learn the soroban
- Meet the sorobanThe parts of the soroban and what they are called.
- Bead valuesA heavenly bead is worth 5, an earthly bead is worth 1.
- Toward adds, away takes awayBeads count only when they touch the beam.
- Bars and place valuesThousands, Hundreds, Tens and Ones.
- The unit dotThe dot on the beam marks the Ones bar.
- How you'll be checkedThe two rules for plotting a number.
- Warm-upPractise plotting with both rules. Nothing is recorded.
- Use the right fingerThumb, index finger or a pinch: which finger moves which beads.