Sunday Afternoon Maths XXXVII

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