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The post 30 Math Puzzles (with Answers) to Test Your Smarts appeared first on Reader's Digest. ... They’re arranged in groups of two-digit numbers; you add eight to the top two-digit number (75 ...
Cross-figure. A cross-figure (also variously called cross number puzzle or figure logic) is a puzzle similar to a crossword in structure, but with entries that consist of numbers rather than words, where individual digits are entered in the blank cells. Clues may be mathematical ("the seventh prime number"), use general knowledge ("date of the ...
In mathematics, the look-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, 31131211131221, ... (sequence A005150 in the OEIS ). To generate a member of the sequence from the previous member, read off the digits of the previous member, counting the number of digits in groups ...
'digit-single'; originally called Number Place) is a logic-based, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9.
Enjoy the addictive shape-fitting puzzle for hours on end. PLAY HERE. 8. 10 x 10. ... Play unlimited word searches online on any number of themes or topics. PLAY HERE.
Ranging from hard to easy, from clever wordplay to math, these thought puzzles are for all ages. ... What 4-digit number multiplied by 4 gives the same number in reverse? A: When multiplied by 4 ...
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