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