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