Mathematical teaching aid for arithmetic
Diene's Multi-base Arithmetic Blocks in wood for bases 2,3,4,5 and 10, unsigned probably English, c.1960.
- Measurements:
-
Largest block: 60 mm x 60 mm x 60 mm, 0.11 kg
- Materials:
- oak (wood)
- Object Number:
- 2001-73 Pt1
- Image ©
- The Board of Trustees of the Science Museum