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Advent calendar 2019
8 December
All 2019 advent puzzles
~
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Carol uses the digits from 0 to 9 (inclusive) exactly once each to write five 2-digit even numbers, then finds their sum. What is the largest number she could have obtained?
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Carol will get
270
whatever she does.
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numbers
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Most recent collections
Advent calendar 2025
Advent calendar 2024
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List of all puzzles
Tags
xor
books
polygons
perimeter
dodecagons
palindromes
proportion
doubling
sport
square grids
algebra
probabilty
indices
spheres
partitions
people maths
determinants
2d shapes
cards
shapes
tournaments
geometric means
geometric mean
speed
square numbers
rectangles
cryptic clues
digits
coordinates
sum to infinity
wordplay
advent
chalkdust crossnumber
polynomials
christmas
digital clocks
unit fractions
games
crossnumbers
triangles
angles
mean
3d shapes
combinatorics
numbers
odd numbers
graphs
routes
even numbers
expansions
division
sets
lines
squares
pentagons
sequences
integration
probability
multiplaction squares
complex numbers
circles
trigonometry
binary
fractions
dominos
folding tube maps
prime factors
arrows
perfect numbers
consecutive integers
number
shape
percentages
decahedra
crosswords
averages
gerrymandering
quadrilaterals
pascal's triangle
sums
consecutive numbers
hexagons
addition
money
the only crossnumber
integers
tangents
factors
tiling
products
calculus
functions
means
lists
ave
powers
floors
cryptic crossnumbers
time
prime numbers
multiples
quadratics
dice
symmetry
factorials
parabolas
neighbours
grids
logic
median
planes
differentiation
matrices
bases
remainders
irreducible numbers
elections
geometry
cube numbers
albgebra
area
digital products
surds
balancing
medians
coins
regular shapes
cubics
volume
range
chocolate
ellipses
axes
taxicab geometry
triangle numbers
chess
clocks
colouring
multiplication
scales
dates
square roots
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rugby
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