Sunday Afternoon Maths XXXVII

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