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