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The abacus: primitive but effective digital computer 1970 Feb: Nine new puzzles to solve 1970 Mar: Cyclic numbers and their properties 1970 Apr: Some mathematical curiosities embedded in the solar system: 1970 May: Of optical illusions, from figures that are undecidable to hot dogs that float 1970 Jun: Elegant triangle theorems not to be found ...
The abacus system of mental calculation is a system where users mentally visualize an abacus to carry out arithmetical calculations. [1] No physical abacus is used; only the answers are written down. Calculations can be made at great speed in this way.
Mathematical puzzles require mathematics to solve them. Logic puzzles are a common type of mathematical puzzle. Conway's Game of Life and fractals , as two examples, may also be considered mathematical puzzles even though the solver interacts with them only at the beginning by providing a set of initial conditions.
A blue dot represents a player finding a theme word, while a light bulb signifies a player using a hint. When the yellow dot appears, the player found a spangram. Strands results page.
A word search, word find, word seek, word sleuth or mystery word puzzle is a word game that consists of the letters of words placed in a grid, which usually has a rectangular or square shape. The objective of this puzzle is to find and mark all the words hidden inside the box.
Splitting the dividend into smaller Partial Dividends, then dividing this Partial Dividend by only the left-most digit of the divisor will provide the answer one digit at a time. As you solve each digit of the answer you then subtract Product Pairs (UT pairs) and also NT pairs (Number-Tens) from the Partial Dividend to find the next Partial ...
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Move over, Wordle and Connections—there's a new NYT word game in town! The New York Times' recent game, "Strands," is becoming more and more popular as another daily activity fans can find on ...