Sunday Afternoon Maths XIII

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