# 11 COOL MATH FACTS YOU SHOULD KNOW

Math might not have been your favorite subject in school but the discipline is full of some interesting facts. Here’s a low-down of some cool math facts:

- Zero is the only number that is not represented in the Roman numerals. It is also the only number with a variety of names like nil, naught, zip and zilch. It is derived from the Arabic word ‘sifr’ which means a secret way of writing.
- The opposite sides of a dice always add up to the number seven. Try noticing it the next time you play a game!
- Ever heard people saying they’d be back in a jiffy? A Jiffy is an actual unit of time i.e. 1/100
^{th}of a second! - Googol is a term used for the number 1 followed by 100 zeros. It was coined by a nine year old in 1940. Google, the iconic search engine, derives its name from the misspelling of this word googol.
- Add the numbers from 1-100. You will get a total of 5050!
- The Greek mathematician, Pythagoreans used small rocks to signify numbers while working on mathematical equations. This is how the word Calculus originated, which means pebbles in Greek.
- There is only number in math that is spelt using the same number of letters as the number itself- Four.
- A parallelepiped is a three dimensional parallelogram!
- In the series of the numbers 0-1000, the letter ‘A’ figures only once. It only appears in one thousand!
- If you take the set of all possible shapes of the same area, a circle will have the shortest perimeter.
- Here is why the number 9 is a magic number. If you multiply a number with nine and add all digits of the resulting number, the sum would always be nine. Try it out!