1.1 Place Value ( p.16-17)

I. The Value of a digit is determined by its position in a number
Ex. 379,421: the value of the 7 is 7 x 10,000
**The of power of zero: 0 is a place holder

II. Place Value Chart
A. Organized into “Periods”
1. A Period is three (3) places
2. Periods are separated by commas (,)
a. When you get to a comma you say the name of the period








III. Writing Numbers
A. Standard Form: 4,927
B. Expanded Form: 4,000 + 900 + 20 + 7 = 4,927
C. Word Form: four thousand, nine hundred twenty-seven

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