Devonte has a meter stick. His teacher tells him that 1 meter equals 0.001 kilometers. He recognizes the decimal, but he isn't sure how to write it in words. What is 0.001 written in words?
In this concept, you will learn how to write decimals in words.
Reading a Decimal in Words
You read a decimal by using the words that show the place value of the last digit of the decimal.
To help read a decimal, you can put it into a place value chart.
Let's use 0.45 as an example.
Hundred  Tens  Ones  Tenths  Hundredths  Thousandths 
Ten Thousandths 


.  4  5 
You read this decimal by using the place value of the last digit to the right of the decimal point. This number is read as fortyfive hundredths because the last digit is in the hundredths place.
You can also use place value to write the number.
First, write the number as you normally would.
Fortyfive
Then, add the place value of the last digit to the right of the decimal point.
Fortyfive hundredths
The answer is fortyfive hundredths.
Examples
Example 1
Earlier, you were given a problem about Devonte and the meter stick.
If 1 meter equals 0.001 kilometers, how can Devonte write 0.001 in words?
First, let’s put this number in a place value chart.
Hundred  Tens  Ones  Tenths  Hundredths  Thousandths 
Ten Thousandths 


.  0  0  1 
Next, read the number.
One
Then, add the place value for the last digit.
One thousandths.
The answer is one thousandths.
Example 2
Write 0.5421 in words.
First, let’s put this number in a place value chart.
Hundred  Tens  Ones  Tenths  Hundredths  Thousandths 
Ten Thousandths 


.  5  4  2  1 
Next, read the number.
Five thousand four hundred twentyone
Then, add the place value of the last digit.
Five thousand four hundred and twentyone ten thousandths
The answer is five thousand four hundred and twentyone ten thousandths.
Example 3
Write 0.7 in words.
First, let’s put this number in a place value chart.
Hundred  Tens  Ones  Tenths  Hundredths  Thousandths 
Ten Thousandths 


.  7 
Next, read the number.
Seven
Then, add the place value of the last digit.
Seven tenths
The answer is seven tenths.
Example 4
Write 0.765 in words.
First, let’s put this number in a place value chart.
Hundred  Tens  Ones  Tenths  Hundredths  Thousandths 
Ten Thousandths 


.  7  6  5 
Next, read the number.
Seven hundred sixtyfive
Then, add the place value of the last digit.
Seven hundred sixtyfive thousandths
The answer is seven hundred sixtyfive thousandths.
Example 5
Write 0.2219 in words.
First, let’s put this number in a place value chart.
Hundred  Tens  Ones  Tenths  Hundredths  Thousandths 
Ten Thousandths 


.  2  2  1  9 
Next, read the number.
Two thousand two hundred nineteen
Then, add the place value of the last digit.
Two thousand two hundred nineteen tenthousandths
Review
Write each decimal in words.
 .5
 .8
 .21
 .18
 .4
 .56
 .93
 .801
 .834
 .355
 .155
 .624
 .5623
 .9783
 .5671
 .2134
 .0123
 .0098
 .0008
 .0001
Review (Answers)
To see the Review answers, open this PDF file and look for section 3.3.