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 Place value is the basis of our entire number system. A place value system is one in which the position of a digit in a number determines its value. In the standard system, called base ten, each place represents ten times the value of the place to its right. You can think of this as making groups of ten of the smaller unit and combining them to make a new unit.
What is place value?
The value of a digit depends on its place in a number. This is its place value.
Place value
Example: Loook at number 444
The 4 in the hundreds place
equal
400
The 4 in tens place equal  40
The 4 in the ones place equal  4
 4
 4
 4
You can see from the place value chart that the
hundreds place is ten times more than the tens
place. And the tens place is ten times more than
the ones place.

Tr it? Multiply 40
(the value of the tens place) times
ten. 40 x 10 =
400 (the value of the hundreds place)
........................................................................................................................................................................................................................................
 400
 ---40
 ---4
Place Values  up to 4 digit numbers
Thousands, Hundreds, Tens, Ones
 ..
What is place value?