Abacus with 20 balls
red / white
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Sloped and therefore very stable design with stainless steel rods. Balls (Ø 1.3cm) and frame of RE-Wood. (25 x 4.5 x 6cm)
All sorts of things can be done with the red and white balls arranged in steps of 5. The balls are arranged in a structure of 5, alternating red/white and white/red: Numbers can be represented or simply counted, "greater than, equal to, or less than" comparisons, all basic arithmetic operations , tens transitions, drawing square and cube roots, and much more.
RE-Wood is made from 100% recycled materials, PEFC certified and can be recycled again and again after use.
item packaging:
weight: 0.163kg
dimensions: 25 x 4.4 x 6cm
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
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