Lesson 1.1 Place Value.

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Presentation transcript:

Lesson 1.1 Place Value

What is place value? Every digit in a number has a special PLACE VALUE. This place value helps us give the number a name. Read this number: 1,428 (when you read a number you are using place value) http://www.sheppardsoftware.com/mathgames/placevalue/value.htm

Please copy on your blank chart

What is the difference between value and place value? Place Value is the “where” Value is the “how much is it worth?” 3,586,459 *The Place Value of the 5 is the hundred thousands place. *The Value of the 5 is 500,000

Find the PLACE VALUE of the blue digit and the VALUE of the red digit. 234,563,213 2,345 198 21,345

Standard form: 1, 428 Expanded form: 1,000 + 400 + 20 + 8 Word form: One thousand, four hundred, Twenty eight

15,864 Standard form: Expanded form: Word from:

How can you use place value to compare numbers? 537,437,641 537,438,006 < Start at the left. Compare the digits in the same position.

Compare (less than or greater than) 1,359,214 1,359,124 >

Order from least to greatest 467,703,522 476,703,520 436,703,521