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