Sunday Afternoon Maths XXXVI

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