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Six cards are dealt: a common objective card at the top and five other cards below. Each player must use all five of the cards' numbers exactly once, using any combination of arithmetic operations (addition, subtraction, multiplication, and division), to form the objective card's number. The first player to come up with a correct formula is the ...
A game of Snatch in progress. Anagrams (also called Snatch or Snatch-words) is a fast-paced, non-turn-based Scrabble variant played without a board. The tiles are placed face-down in the middle of the table, and players take turns flipping a single tile, leaving it in clear view of all players.
Amazing mathematical card tricks that do not require prestidigitation 1972 Aug: The curious properties of the Gray code and how it can be used to solve puzzles 1972 Sep: Pleasurable problems with polycubes, and the winning strategy for Slither 1972 Oct: Why the long arm of coincidence is usually not as long as it seems 1972 Nov
Tiles and cards can be inscribed with a single letter or character for each tile/card. These tiles/cards can each be duplicated any number of times, at different frequencies, depending on the objective of the game set being produced. Anagrams is a traditional word game that can be played with any set of alphabet cards or tiles.
A rep-tile is labelled rep-n if the dissection uses n copies. Such a shape necessarily forms the prototile for a tiling of the plane, in many cases an aperiodic tiling. A rep-tile dissection using different sizes of the original shape is called an irregular rep-tile or irreptile. If the dissection uses n copies, the shape is said to be irrep-n ...
The kite and dart Penrose tiling uses kites with three interior angles of and one interior angle of , and darts, concave quadrilaterals with two interior angles of , one of , and one non-convex angle of . Special matching rules restrict how the tiles can meet at any edge, resulting in seven combinations of ...
For instance, if one had x×x, the only algebra tile that would complete the rectangle would be x 2, which is the answer. Multiplication of binomials is similar to multiplication of monomials when using the algebra tiles . Multiplication of binomials can also be thought of as creating a rectangle where the factors are the length and width. [2]
A tiling with rectangles is a tiling which uses rectangles as its parts. The domino tilings are tilings with rectangles of 1 × 2 side ratio. The tilings with straight polyominoes of shapes such as 1 × 3, 1 × 4 and tilings with polyominoes of shapes such as 2 × 3 fall also into this category.