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Advent calendar 2016
10 December
All 2016 advent puzzles
~
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The smallest number that is equal to the sum of its digits multiplied by ten more than the sum of its digits.
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171
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numbers
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digits
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Most recent collections
Advent calendar 2025
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List of all puzzles
Tags
mean
taxicab geometry
pentagons
parabolas
quadratics
multiplication
pascal's triangle
digital clocks
consecutive integers
spheres
logic
arrows
doubling
cryptic clues
percentages
bases
combinatorics
multiples
range
regular shapes
trigonometry
differentiation
square grids
dates
median
geometric means
sequences
dominos
planes
xor
calculus
cubics
colouring
sets
square numbers
people maths
triangles
balancing
number
shapes
star numbers
angles
gerrymandering
medians
circles
wordplay
even numbers
floors
crosswords
square roots
shape
tournaments
scales
matrices
lists
consecutive numbers
menace
tiling
powers
fractions
geometry
cards
routes
graphs
hexagons
factorials
prime numbers
ellipses
division
2d shapes
geometric mean
partitions
rectangles
digits
sum to infinity
expansions
chalkdust crossnumber
averages
cube numbers
clocks
means
money
coordinates
digital products
crossnumbers
determinants
surds
advent
perfect numbers
the only crossnumber
factors
squares
cryptic crossnumbers
unit fractions
sums
chocolate
speed
time
dice
games
axes
quadrilaterals
sport
odd numbers
grids
christmas
integers
rugby
probabilty
probability
perimeter
folding tube maps
area
decahedra
triangle numbers
prime factors
3d shapes
remainders
lines
volume
proportion
albgebra
complex numbers
symmetry
multiplaction squares
binary
algebra
irreducible numbers
numbers
functions
books
dodecagons
palindromes
elections
tangents
neighbours
integration
chess
polynomials
products
indices
addition
polygons
coins
ave
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