Please click the space bar to advance slides.

Read this number: 987,654,321,012

Reading numbers and understanding place value is easy if you break it down.

Read this number 9

98

Read this number 987

No problems so far? If you can read and understand a three digit number like 987, you can easily read much larger numbers. All you have to do is learn to read the commas.

In the number 987,654 the comma says thousand. Say 987 At the comma say thousand Say 654

Read this number 987,654

In the number 987,654,321 the first comma says million. Say 987 At the first comma say million Say 321 Say 654 At the last comma say thousand

Read this number 987,654,321

In the number 987,654,321,012 the first comma says billion. Say 987 At the first comma say billion Say 321 Say 654 At the next comma say million At the last comma say thousand Say 012

Read this number 987,654,321,012

A number written like this is called standard form 321,012

A number written like this is called word form three hundred twenty-one thousand, twelve

A number written like this is called expanded form 300, , ,