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