The decimals place value system is based on 10. It is an extension of the place value system of whole numbers. The decimal point separates whole numbers from numbers less than 1.

Pin up a decimals place value charts as shown.

Place value of a digit is the place of the digit on the place value chart.

The number of decimals places is the number of digits after the decimal point. Just like the picture shown below.

From the decimals place value chart above,

The place value of digit 7 is thousands & the value of the digit is 7000.

The place value of digit 4 is hundreds & the value of the digit is 400.

The place value of digit 5 is  tens & the value of the digit is 50.

The place value of digit 2 is ones & the value of the digit is 2.

The place value of digit 1 is tenths & the value of the digit is 0.1

The place value of digit 8 is hundredths & the value of the digit is 0.08

The number of 7452.18 can be partitioned into 7000 + 400 + 50 +2 + 0.1 + 0.08

This decimals place value about are printable free, you can use it in teaching kids decimals place value.