A number expressed by four figures is the amount of money starting at 1,000 up to 9,999.
In the decimal number system, the value of a digit depends on its place, or position, in the number. Each place has a value of 10 times the place to its right.
Numbers, such as 5,689 have four digits. Each digit is a different place value (the value of where the digit is in the number).
The first digit (5) is called the thousands' place. It tells you how many sets of one thousand are in the number. The number 5,689 has 5 thousands.