How many years are there in a decade? There are ten! The “dec” part of the word means “ten”. You can find it in other words such as “decimal” and “decimetre” (one tenth of a metre).

How many years in a century? One hundred! “Cent” means one hundred. There are one hundred cents in a dollar, and one per cent is 1/100.

How about a millennium? That’s one thousand years.


「Century」は何年のことでしょう?100年です!「Cent」は「百」という意味を表します。1ドルは100「Cent」であり、1パーセント(per cent)とは、1/100のことです。