To work out which numbers between 1 and 81 are divisible without a remainder.

Board with 81 troughs, matching beads and wooden cones to familiarize yourself with the division's basic tasks. First, the green cones are set up in any number. Then you count out a certain number of pearls out loud. The teacher now assigns each cone in rows from left to right. If one row is full, the next row is used. If a row remains incomplete, the number of beads in this row represents the rest. With 19 beads and 5 cones, 3 rows are fully occupied and in the last row there are 4 beads, the rest. Or: A certain number of beads and Cones are placed in a bowl. The task is to arrange correctly and to determine the result. For reversal tasks, beads are placed on the board first. Then the cones are set up.

You can also get this material from EU production with a separate board for the divisors.

Scope of delivery:
- Lacquered and milled wooden board (25x25 cm, 1 cm thick)
- Box (9x12 cm, 2.7 cm high)
- 100 green wooden balls
- 9 green wooden cones