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