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