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Advent calendar 2017
11 December
All 2017 advent puzzles
~
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Two more than today's number is the reverse of two times today's number.
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497
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numbers
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digits
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Archive
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Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
lines
routes
triangle numbers
polygons
triangles
powers
palindromes
shape
advent
money
tournaments
shapes
cryptic clues
cryptic crossnumbers
colouring
integers
integration
star numbers
sequences
binary
partitions
division
ellipses
crosswords
perfect numbers
factorials
addition
perimeter
pascal's triangle
chocolate
chalkdust crossnumber
folding tube maps
scales
time
probability
differentiation
remainders
sport
games
even numbers
averages
rugby
probabilty
grids
decahedra
bases
dice
digital clocks
sums
cubics
coins
chess
spheres
combinatorics
square roots
expansions
consecutive numbers
geometric mean
numbers
ave
symmetry
multiplication
wordplay
the only crossnumber
medians
angles
menace
taxicab geometry
tiling
clocks
means
prime numbers
regular shapes
hexagons
irreducible numbers
digits
doubling
sets
cube numbers
numbers grids
polynomials
proportion
dominos
arrows
algebra
christmas
indices
trigonometry
median
functions
products
albgebra
tangents
fractions
percentages
number
calculus
square grids
dodecagons
speed
surds
pentagons
matrices
2d shapes
quadrilaterals
crossnumber
quadratics
graphs
3d shapes
squares
logic
complex numbers
parabolas
circles
crossnumbers
people maths
geometric means
elections
gerrymandering
coordinates
multiples
geometry
cards
books
planes
odd numbers
mean
area
floors
rectangles
balancing
unit fractions
range
dates
consecutive integers
neighbours
sum to infinity
factors
square numbers
volume
determinants
digital products
axes
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