Learn positional value, addition and subtraction, and visualize (large) numbers. Apply the "borrow" principle to the next column. Unused beads disappear behind the wooden partition.
This abacus represents units, tens, hundreds, thousands and tens of thousands. It contains 5 x 20 beads in 6 colors, grouped by tens.
Contents:
- Wooden abacus with partition (18 x 15 x 6 cm)
- 100 flat plastic beads in 6 colors (1.5 cm Ø)
