Perform all four mathematical functions (+-x÷) with immediate visual and physical verification of their results.
- The reverse of the number strip may be printed/written on if required.
- Can be completely dismantled for storage.
- Includes 20 x 10g weights, which are 10cm long and 3cm wide.
- Assembled size: 340mm x 650mm
Recommended for ages: 3 years +