what is the difference between place value and number value?
The value of a digit when expressed in expanded form of the number is called its place value in the number. Thus, the place value of a digit in a number is the value it holds to be at the place in the number. ... In the number 2137, 2 is at Thousand-place, 1 is at Hundred-place, 3 is at ten's-place and 7 is at one's-place.