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Advent calendar 2017
16 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 rectangles (of any size) in a 2×19 grid of squares
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570
Tags:
square numbers
,
squares
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dominos
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hexagons
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binary
time
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star numbers
speed
rectangles
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the only crossnumber
complex numbers
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area
elections
lines
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crossnumbers
multiplication
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folding tube maps
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cube numbers
Archive
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▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
numbers
odd numbers
perfect numbers
consecutive integers
regular shapes
money
palindromes
arrows
pentagons
digits
cards
geometric mean
chess
mean
dodecagons
clocks
planes
symmetry
crossnumber
rugby
star numbers
indices
graphs
means
even numbers
lines
range
matrices
partitions
proportion
quadratics
circles
the only crossnumber
unit fractions
ave
division
floors
shape
calculus
cube numbers
shapes
probabilty
logic
grids
dominos
menace
geometric means
bases
polynomials
games
sequences
algebra
sets
gerrymandering
number
crossnumbers
volume
percentages
cubics
ellipses
folding tube maps
squares
parabolas
binary
tangents
integers
wordplay
dice
coins
determinants
angles
addition
expansions
sum to infinity
irreducible numbers
axes
christmas
multiplication
factorials
sums
chalkdust crossnumber
functions
square roots
taxicab geometry
routes
speed
multiples
hexagons
differentiation
pascal's triangle
colouring
tiling
books
integration
3d shapes
digital products
2d shapes
quadrilaterals
crosswords
square numbers
doubling
people maths
factors
chocolate
remainders
probability
area
cryptic clues
trigonometry
dates
triangles
complex numbers
prime numbers
balancing
triangle numbers
polygons
consecutive numbers
rectangles
cryptic crossnumbers
digital clocks
surds
coordinates
averages
median
time
combinatorics
spheres
decahedra
fractions
sport
albgebra
products
scales
geometry
advent
elections
perimeter
tournaments
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