50 red/blue counting chips made of RE-Plastic.

• Illustrate arithmetic operations
• Estimate and then count disordered quantities of tiles (sound number concepts)
• Laying and decomposing ordered quantities
• Stabilize and expand understanding of mathematical operations
• Finding suitable plus and minus tasks (exchange, inversion and neighboring tasks)
• Set simple multiplication tables (multiplication)
• Reverse tasks (division)
• Development of calculation strategies
• Comparing solution methods and ways of representation

weight: 0.091kg
dimensions: 15 x 10 x 2cm