The large frame allows extensive calculations of up to 7-digit numbers (9999999). Each wire represents a decimal place and contains 10 beads of the corresponding colour. With this material, children are introduced to written addition.
Usage:
- Addition up to 9 999 999
- Subtraction up to 9 999 999

Age recommendation:
From 7 years

Learning objectives: 
Addition, subtraction of numbers up to 1 million 
Preparation for additon and subtraction

Self-correction:
Solution cards, a calculator or adult

Material / size:
Wooden Frame
7 wires strung with 10 beads
Approx. 25.5 x 17 x 4.5 cm

Environment & Safety: 
Quality wood from environmentally friendly plantations
CE tested, testing protocols for SGS EN71 and DIN