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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.
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563
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Most recent collections
Advent calendar 2023
Advent calendar 2022
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List of all puzzles
Tags
gerrymandering
routes
speed
combinatorics
angles
quadrilaterals
palindromes
taxicab geometry
cryptic clues
functions
chalkdust crossnumber
differentiation
matrices
symmetry
bases
shape
dominos
cards
multiples
tiling
integers
crossnumbers
partitions
median
chocolate
geometric mean
menace
3d shapes
dates
square numbers
algebra
even numbers
advent
lines
parabolas
squares
ellipses
crossnumber
proportion
time
elections
expansions
sequences
odd numbers
arrows
logic
doubling
ave
chess
dodecagons
people maths
crosswords
surds
mean
polygons
wordplay
division
regular shapes
rugby
axes
sums
quadratics
sets
rectangles
averages
determinants
decahedra
means
numbers
tournaments
cubics
shapes
the only crossnumber
consecutive numbers
number
polynomials
books
scales
planes
sport
remainders
balancing
factors
cube numbers
coins
sum to infinity
binary
factorials
folding tube maps
albgebra
prime numbers
circles
perimeter
calculus
grids
range
probabilty
clocks
geometry
trigonometry
fractions
unit fractions
money
graphs
floors
games
cryptic crossnumbers
colouring
multiplication
percentages
irreducible numbers
digital products
perfect numbers
area
square roots
probability
products
hexagons
geometric means
tangents
christmas
volume
triangle numbers
digital clocks
addition
pentagons
coordinates
2d shapes
digits
star numbers
pascal's triangle
spheres
complex numbers
dice
indices
consecutive integers
triangles
integration
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