Advent calendar 2019

23 December

Arrange the digits 1-9 in a 3×3 square so the 3-digits numbers formed in the rows and columns are the types of numbers given at the ends of the rows and columns. The number in the first column is today's number.
a multiple of 4
a cube
a multiple of 3
today's numbera cubean odd number

Show answer

Tags: numbers, grids


Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021