16 December

Arrange the digits 1-9 in a 3×3 square so that: the median number in the first row is 6; the median number in the second row is 3; the mean of the numbers in the third row is 4; the mean of the numbers in the second column is 7; the range of the numbers in the third column is 2, The 3-digit number in the first column is today's number.
median 6
median 3
mean 4
today's numbermean 7range 2

Show answer


Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020