Counting
Money

This is a penny.  A penny is worth 1 cent.

This is a nickel.  A nickel is worth 5 cents.  There are 5 pennies in a nickel.

This is a dime.  A dime is worth 10 cents.  There are 10 pennies in a dime.  There are 2 nickels in a dime.

This is a quarter.  A quarter is worth 25 cents.  There are 25 pennies in a quarter.  There are 5 nickels in a quarter.