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