home |
science club |
tuxtalk |
photos |
toolbox |
avr microcontroller & DIY electronics |
e-cards |
familyhistory
no preservatives added blog |
computer and graphics corner |
herbal treasure chest |
splash into math |
periodic table
roman numerals
Well, roman numerals are not really a number system but simply a different way of writing numbers.
❄️ The Penguin Decoder Ring
1 I
2 II
3 III
4 IV
5 V
6 VI
7 VII
8 VIII
9 VIX
10 X
20 XX
30 XXX
40 XL
50 L
60 LX
70 LXX
80 LXXX
90 XC
100 C
200 CC
300 CCC
400 CD
500 D
600 DC
700 DCC
800 DCCC
900 CM
1000 M
Example: 1971
1000 (M) + 900 (CM) + 70 (LXX) + 1 (I) = MCMLXXI
2003 MMIII
2011 MMXI
2019 MMXIX
2020 MMXX
2021 MMXXI
2022 MMXXII
2023 MMXXIII
2024 MMXXIV
2025 MMXXV
🐧 Karl & Gini and the Secret of the Frozen Numerals
The morning sun shimmered across the ice, painting the penguin colony in gold and silver. Karl and Gini waddled side by side, chattering happily about the shiny fish they hoped to catch that day.
But then - CLUNK!
Karl's foot hit something hard beneath the snow.
"Careful, Karl!" Gini giggled. "Did you find another fish?"
Karl brushed away the snow and gasped. "Not a fish, Gini - look! It's... a tablet!"
Indeed, half-buried in the ice was a smooth, ancient slab of stone. Strange marks were carved into its surface:
I V X L C D M
Gini squinted. "Hmm. Those aren't fish bones. What are those letters?"
Just then, the other penguins gathered around - Flip, Flippa, Pip, Flippo, Waddle and Flipflop - forming a curious, wobbly circle.
"Maybe it's a penguin map!" Pip suggested.
"Or a secret code for snacks!" said Flipflop, always thinking about sardines.
Karl tilted his head. "Wait... I remember something from a book about numbers I read a while back. Humans used these to count things a long time ago!"
Gini's eyes sparkled. "Count? With letters? That's silly. Show me how!"
Karl proudly cleared his throat. "See, Gini, I means one, V means five, X means ten, L means fifty, C means a hundred, D is five hundred, and M is a thousand!"
The other penguins gasped.
"Humans must have had so many feathers to remember all that!" said Waddle.
Flippa waddled forward. "So what's this, then?" she asked, pointing at XII.
Karl thought for a moment. "That's ten... plus one... plus one... So, twelve!"
Gini clapped her flippers. "So if I wrote XV, that's ten plus five - fifteen!"
"Exactly!" Karl beamed.
But then Flippo, the mischief-maker, peered closer at another carving.
"What about this one - IX?"
All the penguins looked puzzled.
"That's backwards! You can't put a little one before a big ten!" said Pip.
Karl chuckled. "Actually, that's how you make nine. When a smaller numeral comes before a bigger one, it means you subtract!"
The colony gasped again. "Subtract! Fancy word!" said Flip. "Like when the fish are missing from the bucket?"
"Exactly," Karl said with a wink.
Soon, the penguins were scratching Roman numerals into the snow with their flippers - counting pebbles, snowflakes, and even fish.
Flipflop proudly announced, "I caught VII fish today!"
Waddle groaned. "I only caught II..."
But Gini smiled and said, "That's okay, Waddle. Together we have IX - nine fish total!"
The whole colony burst into cheers, laughing and flapping until the ice echoed with joy.
As the sun dipped low, Karl and Gini looked back at the mysterious tablet, now shining warmly in the twilight.
"We should keep it safe," Gini said softly. "It's part of penguin history now."
Karl nodded. "And maybe someday we'll find another one - with even more mysteries to count."
Then they waddled off together, their reflections dancing on the ice, whispering:
"I... V... X... L... C... D... M..."
"The secret numbers of the ancients!"
🐧❤️
references
https://www.rapidtables.com/convert/number/roman-numerals-converter.html
http://romannumerals.babuo.com/roman-numerals-1-5000
Copyright © 2004-2026 Katja Socher, tuxgraphics.org