Writing Decimals in Words and their Expanded Notation

Expanded form is a way of writing a number that shows the sum of values of each digit of a number.

Consider the decimal number 68.549.

It can be written in PV table as:
 

|Using the place value of each digit, we can write the expanded form of the given number as:

Now let's write 68.549 in words.

To write a decimal in words, first, read the digits to the left of the decimal point as a whole number.

68           Sixty eight

Then write decimal point as 'and'.
68.          Sixty eight and

Now write the digits to the right of the decimal point as a whole number and add the place value of the last digit at the end.

68.549    Sixty eight and five hundred forty nine thousandths

So, 68.549 is written as Sixty eight and five hundred forty nine thousandths in words.