Place Value: the value of a digit based on its position in the number
Place value after the decimal:
- 1st digit after the decimal: tenth
- 2nd digit after the decimal: hundredth
- 3rd digit after the decimal: thousandth
- and so on...
0.639
- the 9 is the third digit after the decimal, meaning it falls in the thousandth place
to calculate the worth of 9:
(place value) x (face value)
= 0.001 x 9
= 0.009
- The worth of the 9 in 0.639 is 0.009