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 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024