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 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026