Place the card with 100 squares into the lid and practise with the units and longs. Increase insight into the decimal system.
- transparent plastic box (10.5 x10.5 x 1.5 cm)
- 20 blank wooden units 1 cm3
- 8 blank wooden longs 10 cm3
- white plastic card with 100 squares
|Minimum age||6 years|