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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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digital products
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sum to infinity
tangents
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cryptic crossnumbers
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cryptic clues
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proportion
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geometric mean
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floors
even numbers
the only crossnumber
lines
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sequences
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3d shapes
gerrymandering
integers
dates
algebra
prime numbers
ave
averages
people maths
neighbours
addition
consecutive numbers
cubics
calculus
coordinates
chalkdust crossnumber
folding tube maps
expansions
means
factorials
median
2d shapes
indices
axes
matrices
unit fractions
star numbers
sums
products
triangle numbers
square roots
multiplaction squares
geometry
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