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