Mathematical educational game devices

A three dimensional educational and puzzle device, comprising:

• (a) a plurality of circular trays, each of said trays including a raised center portion defining a circumferentially disposed mounting flange;
• (b) a plurality of members having an outwardly extending surface with a number or arithmetic operator printed thereon, said members adapted to be positioned within each of said mounting flanges;
• and
• (c) fastening means for securing said circular trays in stacked relationship, enabling said outwardly extending surfaces of the members to form circumferential and longitudinal, mathematically correct equations.

A three dimensional educational and puzzle device, comprising:

• (a) a plurality of block members, each of said members having a stem portion projecting outwardly from an outwardly facing surface portion of the block member;
• (b) a plurality of pyramid shaped portions, each of said pyramid portions having a plurality of outwardly converging inclined surfaces with a number or operator printed on each of the surfaces, and a rear surface including a recess adapted for receiving the stem portions of the block members for securing the pyramid portions to the block members, thereby enabling selective upward positioning of different inclined surfaces by rotating the pyramid portions for forming different mathematically correct equations;
• and
• (c) a plurality of circular trays, said trays adapted to be stacked and spaced apart from each other, said members adapted to be positioned upon said trays, the numbers and operators on said inclined surface portions forming mathematically correct equations longitudinally and circumferentially when said blocks are properly relatively positioned within the trays.