Count money (U.S.)

The first instance of  is under the Early Math Math Mission. This exercise practices rapid calculation with respect to money, specifically concentrating on American coinage and bills.

Types of Problems
There are two types of problems in this exercise:


 * 1) Count the dollars: This problem describes the bills that a person has and asks the student to calculate the total amount of dollars they have.Dollar.png
 * 2) Count the change: This problem shows the change that a person has and asks the student to calculate the total amount of cents they have.Cents.png

Strategies
This exercise is easy to get accuracy badges if you are familiar with American money. It is medium difficulty to get speed badges if you are American because of the time it takes to count the money without having it physically in your hand. Research would suggest it would be hard to get speed badges if you are not American due to unfamiliarity with American money.


 * 1) On the dollar problems, the total has not exceeded $100.
 * 2) On the dollar problems, it seems most efficient to calculate from the end of the sentence first (largest denomination of bills).
 * 3) On the coin problems, the total has not exceeded 99 cents.