mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Ten digit number

Can you create a 10-digit number, where the first digit is how many zeros in the number, the second digit is how many 1s in the number etc. until the tenth digit which is how many 9s in the number?

Show answer & extension

Tags: numbers
If you enjoyed this puzzle, check out Sunday Afternoon Maths XXIII,
puzzles about numbers, or a random puzzle.

Archive

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

Tags

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

Archive

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