Sunday Afternoon Maths VLII

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