Sunday Afternoon Maths VLII

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