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