Place Value

We have been working on place value in class. The students have learned about standard form, word form and expanded form. Here is an example:

Place Values - Expanded Form

Each digit of a number, such as 495,786, has a different place value name.

4 9 5,7 8 6
| | | | | |__ digits' place value
| | | | |____ tens' place value
| | | |______ hundreds' place value
| | |________ thousands' place value
| |__________ ten-thousands' place value
|____________ hundred-thousands' place value

There are 4 sets of one hundred thousand, 9 sets of ten thousand, 5 sets of one thousand, 7 sets of one hundred, 8 sets of ten, and 6 ones in the number 495,786. Expanded form shows the number expanded into an addition statement. The expanded form of 495,786 is 400,000 + 90,000 + 5,000 + 700 + 80 + 6.

Word Form shows: Four hundred ninety-five thousand seven hundred eighty-six

Place Value Games & Practice
http://www.toonuniversity.com/flash.asp?err=503&engine=15
http://media.emgames.com/emgames/demosite/playdemo.html?activity=M2A050&activitytype=dcr
http://www.aaamath.com/plc31-placevalue.html
http://www.toonuniversity.com/flash.asp?err=496&engine=5
http://www.mathcats.com/explore/reallybignumbers.html