Sunday Afternoon Maths XXXVII

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