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ARITHMETICAL AND ALGEBRAICAL PROBLEMS I
Triangle Square and other Polygon Puzzles
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apples arithmetical arrange asked barrel cards circle clock Colonel Crackham colors column contain contiguous count counters course cross cube diagram digital roots digits sum distance divided divisible divisor dotted lines draw Dudeney Dudeney's Dump eight enclosed equal exactly example feet Figure five fold FOUR PENNIES four pieces fractions give Greek cross half hexagon illustration shows inches leap length magic square matches Mathematics measure miles an hour miles per hour minutes moves multiplied nine digits odd number penny pentagon perfect square Pigtown pips play problem Professor Rackbrane PUZZLE Place rational triangles reader remainder ride route score seven sheep side simple smallest number solution square number square root star steps straight line swastika trees triangle twelve twenty W. W. Rouse Ball walk wheel whole numbers yards