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