11 December

This year, I was involved in starting Chalkdust Magazine. One of my roles for the magazine has been writing the £100 crossnumber puzzle.
What is the answer to 35 across in the first issue's crossnumber?

35A. The smallest number which is one more than triple its reverse. (3)


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Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

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planes ave calculus perimeter angles integers squares wordplay indices rugby multiples arrows square numbers probability probabilty gerrymandering sequences partitions multiplication perfect numbers quadratics numbers addition crosswords integration menace range speed balancing bases percentages cube numbers time dates chocolate graphs averages parabolas clocks star numbers polygons games mean dice sport grids ellipses algebra area unit fractions tiling symmetry products palindromes cryptic crossnumbers books surds trigonometry means fractions prime numbers dodecagons sum to infinity proportion volume circles coins regular shapes advent shape sums folding tube maps scales square roots digital clocks cards hexagons dominos routes elections the only crossnumber factorials lines triangle numbers doubling median floors crossnumber people maths differentiation irreducible numbers remainders colouring pascal's triangle taxicab geometry logic odd numbers triangles chalkdust crossnumber spheres factors geometry money cryptic clues chess functions crossnumbers shapes number coordinates 3d shapes christmas division 2d shapes digits complex numbers rectangles


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