Patent ID: 7364431

Claim:
A multiplication game comprising: a perforated game board, wherein the assemblage of perforations forms a rectangular matrix; a horizontal row of numerals printed on the rim of said board wherein said numerals are evenly increasing in value from one end to the other end, and wherein below each numeral a column of perforations is disposed; a column of numerals printed on the edge of said board wherein said numerals are evenly increasing in value from one end to the other end, and sideways from each numeral a row of perforations is disposed; a set of chips the total number of which equals to the product of the largest value in said column multiplied by the largest value in said horizontal row, wherein each chip is insertable in a cut-out window of said board, and wherein each chip has one numeric value inscribed on its upper face, such that for each multiplication of any number in said row with any number of said column there is found a matching numeral on a chip, and two sets of coloured stripes printed on the upper face of said board, wherein all the stripes in each set are parallel, and wherein each stripe in a set is uniquely coloured, and wherein all stripes in a set are perpendicular to all the stripes in the other set.