mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Advent calendar 2016
1 December
All 2016 advent puzzles
~
More information
One of the digits of today's number was removed to leave a two digit number. This two digit number was added to today's number. The result was 619.
Show answer
Hide answer
563
Tags:
numbers
,
digits
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
triangles
floors
rectangles
addition
sums
sets
multiples
angles
taxicab geometry
tiling
money
geometric mean
factors
star numbers
dice
parabolas
2d shapes
median
books
proportion
powers
square numbers
medians
probability
speed
xor
integers
unit fractions
calculus
squares
crosswords
quadrilaterals
neighbours
grids
albgebra
even numbers
consecutive integers
polynomials
surds
indices
3d shapes
circles
doubling
rugby
trigonometry
consecutive numbers
multiplaction squares
multiplication
crossnumbers
geometry
sport
prime numbers
differentiation
people maths
elections
games
averages
digital clocks
area
hexagons
cards
bases
complex numbers
volume
functions
perfect numbers
square roots
arrows
dates
shape
balancing
logic
advent
mean
dodecagons
square grids
perimeter
partitions
time
matrices
scales
ave
products
integration
odd numbers
sequences
christmas
remainders
prime factors
digits
expansions
cryptic clues
palindromes
factorials
cubics
colouring
chess
axes
chalkdust crossnumber
combinatorics
means
pascal's triangle
algebra
geometric means
numbers
spheres
wordplay
symmetry
decahedra
percentages
polygons
division
coins
folding tube maps
lines
triangle numbers
ellipses
graphs
tangents
clocks
quadratics
cryptic crossnumbers
regular shapes
range
fractions
number
routes
digital products
menace
sum to infinity
shapes
determinants
coordinates
lists
irreducible numbers
chocolate
tournaments
probabilty
planes
dominos
binary
the only crossnumber
pentagons
gerrymandering
cube numbers
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
neighbours
elections
indices
hexagons
powers
trigonometry
square grids
tiling
cryptic crossnumbers
perfect numbers
multiplaction squares
menace
tangents
probability
chocolate
division
grids
square roots
angles
sets
proportion
consecutive integers
sums
chess
area
cards
xor
probabilty
decahedra
quadrilaterals
sport
unit fractions
rectangles
geometric mean
coordinates
complex numbers
3d shapes
combinatorics
triangle numbers
expansions
partitions
coins
averages
floors
axes
cubics
palindromes
integration
crossnumbers
clocks
advent
median
surds
speed
binary
gerrymandering
ellipses
squares
multiples
algebra
bases
lists
crosswords
2d shapes
digital clocks
parabolas
polygons
integers
prime numbers
even numbers
geometry
balancing
matrices
ave
dodecagons
shape
lines
cube numbers
odd numbers
time
taxicab geometry
pentagons
books
albgebra
determinants
mean
square numbers
arrows
digital products
range
polynomials
digits
functions
number
percentages
sum to infinity
irreducible numbers
cryptic clues
triangles
star numbers
pascal's triangle
logic
graphs
colouring
sequences
perimeter
planes
the only crossnumber
quadratics
money
differentiation
means
rugby
addition
medians
factorials
routes
games
spheres
folding tube maps
doubling
dates
calculus
geometric means
remainders
people maths
symmetry
circles
shapes
factors
prime factors
christmas
dominos
consecutive numbers
dice
products
regular shapes
numbers
volume
scales
chalkdust crossnumber
fractions
multiplication
wordplay
tournaments
© Matthew Scroggs 2012–2026