Abacus with 20 balls
red / white
Addition - adding with and without passing tens Multiplication - multiply division - dividing - distributing Comparison of numbers...
Frame parts and balls (Ø 1.3 cm) made of RE-Wood. All parts are screwed together.
Very sturdy design with stainless steel rods. (25 x 17 x 4.5 cm)
Packed in a cardboard box.
All sorts of things can be done with the red and white balls arranged in steps of 5: Numbers can be represented or simply counted, "greater than, equal to or less than" comparisons, all basic arithmetic operations , tens transitions, taking 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: 0.462kg
dimensions: 25 x 5 x 17cm
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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