One hundred is a lovely number. It is a round number, and it is even. It can be grouped into ten tens, five twenties, or four groups of twenty-five. It can be used to represent a dollar in money. If something is 100%, it is the full amount. It is the boiling point of water in degrees Celsius.
One hundred is the number of years in a century. There are one hundred tiles in a Scrabble game. The one-hundred-dollar bill is the largest U.S. bill in print, and there are exactly one hundred words in these two paragraphs.
One hundred yards is the measurement of an American football field without the end zones. How many professional football players do you think have run one hundred yards for a touchdown?