Transcript Lesson 1.1 Place Value What is place value?

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)
Please copy on your blank
chart
2 2 ,9
5
5,0
1
2 ,1
6
9
Find the PLACE
VALUE
of the blue 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 <
Start at the left.
Compare the digits
in the same position.
537,438,006
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
Bonus Question
Find the PLACE VALUE of
the
blue, red, and green digits…
12.346
Today’s Place Value
Activities
o “Getting to Know You”
o “Don’t Forget It!”
o “Color Coded Costumes”
o Place Value Puzzler Game
http://www.funbrain.com/tens/index.html