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Comments in green were written by me. Comments in blue were not written by me.
2024-12-19
Matt, great card this year! Problems 1 and 2 are slightly ambiguous though in that you did not specify that each digit could only be used once.
I initially thought the answers were simply 44×44 = 1936 and 99×99999999 = 9899999901, respectively ????
Dan Whitman
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light
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dataset
gaussian elimination
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gerry anderson
chalkdust magazine
tmip
big internet math-off
people maths
menace
weather station
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european cup
misleading statistics
manchester
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craft
stirling numbers
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chess
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folding paper
signorini conditions
cambridge
regular expressions
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hats
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24 hour maths
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inline code
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© Matthew Scroggs 2012–2025
I initially thought the answers were simply 44×44 = 1936 and 99×99999999 = 9899999901, respectively ????
on /blog/112