If someone has 2 quarters, 4 dimes, 2 nickels and 1 penny, they have a total of $1.01. Every coin has a designated value. When counting money, one simply has to add these values together. Money is measured in cents. One dollar is equivalent to 100 cents.
A quarter is worth 25 cents; it takes 4 quarters to make a dollar. A dime is worth 10 cents; it takes 10 dimes to make a dollar. Nickels are worth 5 cents; it takes 20 nickels to make a dollar. A penny is worth 1 cent; it takes 100 pennies to make a dollar.