Numbers, such as 84, have two digits. Each digit is a different
place value.
The first digit is the tens' place.
It tells you that there are 8 tens in the number 84.
The right digit is the ones' place which is 4 in this example.
Therefore, there are 8 sets of 10, plus 4 ones in the number 84.
8 4
| |__ones' place
|_________tens' place