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Advent calendar 2017
14 December
All 2017 advent puzzles
~
More information
There are
204 squares (of any size) in an 8×8 grid of squares
. Today's number is the number of squares in a 13×13 grid of squares
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819
Tags:
square numbers
,
squares
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Archive
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▼ show ▼
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Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
square grids
palindromes
triangles
trigonometry
colouring
regular shapes
chocolate
chess
numbers
differentiation
geometric mean
symmetry
decahedra
geometry
dice
perimeter
parabolas
matrices
digital products
sum to infinity
2d shapes
star numbers
remainders
calculus
consecutive numbers
partitions
algebra
hexagons
even numbers
crossnumber
square roots
means
menace
chalkdust crossnumber
scales
bases
probability
sums
median
fractions
lines
balancing
taxicab geometry
crosswords
shape
gerrymandering
wordplay
multiples
sequences
neighbours
christmas
numbers grids
determinants
cube numbers
graphs
expansions
pascal's triangle
axes
polynomials
books
squares
proportion
tournaments
crossnumbers
probabilty
irreducible numbers
geometric means
clocks
functions
division
combinatorics
tangents
polygons
volume
surds
coordinates
cards
grids
doubling
money
the only crossnumber
dominos
rugby
shapes
advent
number
ellipses
digital clocks
dodecagons
quadrilaterals
cubics
prime numbers
routes
pentagons
integers
coins
indices
range
quadratics
square numbers
folding tube maps
products
sport
perfect numbers
angles
arrows
unit fractions
triangle numbers
people maths
integration
powers
elections
circles
games
addition
3d shapes
area
dates
sets
mean
cryptic crossnumbers
multiplication
digits
consecutive integers
speed
factors
medians
averages
time
cryptic clues
factorials
percentages
complex numbers
ave
floors
spheres
logic
planes
albgebra
rectangles
tiling
odd numbers
binary
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