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Advent calendar 2016
1 December
All 2016 advent puzzles
~
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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
Advent calendar 2021
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List of all puzzles
Tags
circles
range
combinatorics
median
dice
products
people maths
planes
perimeter
geometric mean
time
digits
perfect numbers
indices
algebra
proportion
colouring
determinants
ellipses
parabolas
routes
arrows
sums
numbers
clocks
folding tube maps
tangents
remainders
number
means
factors
hexagons
square roots
speed
squares
crosswords
shapes
sets
unit fractions
lines
functions
matrices
the only crossnumber
quadratics
crossnumber
balancing
square numbers
dodecagons
triangles
geometric means
digital products
consecutive numbers
axes
calculus
elections
percentages
pascal's triangle
probabilty
digital clocks
rectangles
integers
taxicab geometry
dominos
gerrymandering
mean
advent
surds
sum to infinity
trigonometry
menace
consecutive integers
chess
cards
multiplication
logic
chalkdust crossnumber
palindromes
decahedra
quadrilaterals
area
complex numbers
even numbers
irreducible numbers
ave
cubics
dates
star numbers
binary
coordinates
volume
grids
angles
graphs
prime numbers
cube numbers
cryptic crossnumbers
regular shapes
triangle numbers
tiling
shape
multiples
books
christmas
addition
differentiation
geometry
3d shapes
2d shapes
albgebra
probability
money
cryptic clues
factorials
wordplay
games
sequences
coins
crossnumbers
rugby
averages
floors
sport
spheres
partitions
polygons
division
polynomials
doubling
symmetry
integration
pentagons
bases
fractions
expansions
scales
tournaments
odd numbers
chocolate
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