Teach position values, addition and subtraction.
This abacus represents units, tens, hundreds, thousands and tens of thousands.
It contains 5 x 10 beads of 5 colors grouped by tens.
Contents:
- Wooden abacus with partition (19 x 21 x 9.5 cm)
- 50 flat plastic beads in 5 colors (2.6 Ø)
