Sunday Afternoon Maths VLII

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