1. NUMBER VALUES The value of numbers. Number forms.
How to read and write them.

2. Numbers Have Place Value
Numbers with more than one digit show sets.
Each place can only hold the value
of a single digit:
0 - 9
Sets of 100
Sets of ten
Single units
Hundreds
Tens
Ones

3. Place Value Names Hundreds Tens Ones (1 flat = 10 rods)
(1 rod = 10 units)
Ones
(units)

4. There are Many Ways to Show Numbers. We will look at four ways :
Number Model
Expanded Form
Standard Form
Number Word

5. Four Ways to Show Numbers
1. Number model
hundreds
tens
ones
2. Expanded:
3. Standard:
4. Word: One hundred forty-three

6. Number Model
Tens
Ones 4 7

7. Which one shows a number model?
hundreds
tens
ones
20+3
six

8. Expanded Form Since 4 sets of 10 is 40 and 7 units is 7
Tens
Ones 4 7
Since 4 sets of 10 is 40
and 7 units is 7
the expanded form is

9. What form is this? 100 + 60 + 1 Number Word Expanded Form
Standard Form

10. Standard Form From a Model
Tens
Ones 4 7
4 7

11. Which is standard form?
Fifty - Four 54
50 + 4

12. Number Word from a Model
Tens
Ones
Forty - seven

13. Which is the number word for 73?
thirty - seven
seventy - three

14. Which is The Model’s Standard Form?
Tens
Ones

15. Which is the model’s expanded form?
Tens
Ones

16. Show a number four ways. Number model Expanded form… 30 + 2
Tens
Ones 5 2
Expanded form…
Standard form…
Number word… thirty-two

17. Let’s Review… Expanded form… 100 + 40 + 3 Standard Form… 1 4 3
hundreds
tens
ones
Model Form…
Expanded form…
Standard Form…
Number Word… One Hundred forty-three

18. Numbers 4 Ways Hundreds Tens Ones 1 hundred 2 tens 4 ones 100 + 20 + 4
124
One hundred twenty-four