<p>We will now reverse the process and write a number given in words as digits.</p>

<p>HOW TO Use place value to write a whole number.</p>

<ol style="list-style-type:decimal">
	<li>Step 1. Identify the words that indicate periods. (Remember the ones period is never named.)</li>
	<li>Step 2. Draw three blanks to indicate the number of places needed in each period. Separate the periods by commas.</li>
	<li>Step 3. Name the number in each period and place the digits in the correct place value position.</li>
</ol>

<p><strong>EXAMPLE&nbsp;1.6</strong></p>

<p>Write the following numbers using digits.</p>

<ul>
	<li>?&nbsp;fifty-three million, four hundred one thousand, seven hundred forty-two</li>
	<li>?&nbsp;nine billion, two hundred forty-six million, seventy-three thousand, one hundred eighty-nine</li>
</ul>

<p>&nbsp;</p>

<p>Solution</p>

<p>?&nbsp;Identify the words that indicate periods.</p>

<p>Except for the first period, all other periods must have three places. Draw three blanks to indicate the number of places needed in each period. Separate the periods by commas.</p>

<p>Then write the digits in each period.</p>

<p><img alt="An image with three blocks of text pointing to numerical values. The first block of text is “fifty-three million”, has the label “millions”, and points to value 53. The second block of text is “four hundred one thousand”, has the label “thousands”, and points to value 401. The third block of text is “seven hundred forty-two”, has the label “ones”, and points to value 742." src="https://openstax.org/resources/985d46bd4f649e676ff77e67f23d1db2634e0fdb" /></p>

<p>Put the numbers together, including the commas. The number is&nbsp;53,401,742.53,401,742.</p>

<p>?&nbsp;Identify the words that indicate periods.</p>

<p>Except for the first period, all other periods must have three places. Draw three blanks to indicate the number of places needed in each period. Separate the periods by commas.</p>

<p>Then write the digits in each period.</p>

<p><img alt="An image with four blocks of text pointing to numerical values. The first block of text is “nine billion”, has the label “billions”, and points to value 9. The second block of text is “two hundred forty-six million”, has the label “millions”, and points to value 246. The third block of text is “seventy-three thousand”, has the label “thousands”, and points to value 742. The fourth block of text is “one hundred eighty-nine”, has the label “ones”, and points to the value 189." src="https://openstax.org/resources/d22a55285c8446cb38a561d741d4ae71d71b9fdb" /></p>

<p>&nbsp;</p>

<p>The number is&nbsp;9,246,073,189.9,246,073,189.</p>

<p>Notice that in part&nbsp;?, a zero was needed as a place-holder in the hundred thousands place. Be sure to write zeros as needed to make sure that each period, except possibly the first, has three places.</p>

<p><strong>EXAMPLE&nbsp;1.7</strong></p>

<p>A state budget was about&nbsp;$77$77&nbsp;billion. Write the budget in standard form.</p>

<p>Solution</p>

<p>Identify the periods. In this case, only two digits are given and they are in the billions period. To write the entire number, write zeros for all of the other periods.</p>

<p><img alt="An image with four blocks of text pointing to numerical values. The first block of text is “77 billion”, has the label “billions”, and points to value “77”. The second block of text is null, has the label “millions”, and points to value “000”. The third block of text is null, has the label “thousands”, and points to value “000”. The fourth block of text is null, has the label “ones”, and points to the value “000”." src="https://openstax.org/resources/bd95e17f7da718f94b5bc2a5af5b4130bc2e8a08" /></p>

<p>&nbsp;</p>

<p>So the budget was about&nbsp;$77,000,000,000.</p>