Powerful quadratics

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


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