1. Place Value, Names for Numbers and Reading Tables
Section 1.2
Place Value,
Names for Numbers
and Reading Tables

2. Place Value
The place a certain number is located

3. Place Value Example
Given the number 231,456,789 define the place values of all numbers.

4. Ways to write Numbers Word Form Standard Form Expanded Form
write out the number in words
Standard Form
Translate the words into numbers
Expanded Form
Write number or word into a sum of place values

5. Word Form A way to write the words given the numbers.
Don’t forget a comma.
Work on each group of three digits (period) individually.
Each period of ones and tens will either be combined or hyphenated.

6. Word Form, Combined

7. Word Form, Hyphen
Numbers over twenty, with a nonzero value in both the ones and the tens place will have a hyphen.

8. The whole number 28,205,312 is written in Standard Form write it in words.

9. The whole number 523,179 is written in Standard Form write it in words.

10. Write 170,253 in words.

11. Standard Form A way to write the numbers given the words.
Write the number in each period, followed by a comma.

12. Write forty-seven million, seven hundred three thousand, twenty-nine in standard form.

13. Write seven hundred eighty-nine in standard form.

14. Write twenty thousand, two hundred fifteen in standard form.

15. Expanded Form
A way to write a number that shows the value of each digit.

16. Write 789 in Expanded Form

17. Write 532,570 in Expanded Form

18. Write 123,570,468 in Expanded Form