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