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


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


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