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