The wooden board has a checkerboard carpet printed in the hierarchic colours with diagonally arranged squares and references (from units to millions) engraved on two sides of the boards. The carpet prevents the bead bars to roll away on the surface. The wooden parts have a natural oil finishing.
WHOLE NUMBERS CHECKERBOARD IN WOOD AND CARPET
The board is to be used together with the number stamps (MA20-A) and the beads (MA23) to make multiplications with big numbers and to make a geometric analysis of the multiplication.