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Advent calendar 2016

7 December

Put the digits 1 to 9 (using each digit once) in the boxes so that the three digit numbers formed (reading left to right and top to bottom) have the desired properties written by their rows and columns.
multiple of 25
today's number
all digits even
multiple of 91multiple of 7cube number
Tags: grids, numbers

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

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