what is the divisions of the dollar?

Question

what are the divisions of the dollart and names used to them inside USA

Answer 1

A dollar is 100 cents

a penny is 1 cent
a nickel is 5 cents
a dime is 10 cents
a quarter is 25 cents
a half dollar or 50 cent piece (fairly uncommon) is 50 cents

Answer 2

1/100th of a dollar is called a cent. As in "one percent" -- 100 cents to a dollar.

OK,

a 1 cent coin is often called a penny
5 cent coin is called a nickel
10 cent coin is called a dime
25 cent coin is called a quarter
50 cent coin is called a half-dollar.
There is also a 1 Dollar coin. That's it for coins.

Among paper currency:
1 dollar bill
5 dollar bill
10 dollar bill
20 dollar bill
50 dollar bill
100 dollar bill.