Sunday Afternoon Maths XXXVI

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