Transcript Place Value Ones, Tens, Hundreds, Thousands

PLACE VALUE
Three Ways We Write Numbers
Different Ways to Write a Number
standard form - the normal way we write
numbers
Examples
456
1,284
9,764,432
Different Ways to Write a Number
expanded form - the “long” way to write a
number
Example
400 + 70 + 8 = 478
Different Ways to Write a Number
word form - writing a number using “words”
Example
three hundred twenty five
*NOTICE THAT THE WORD “AND” WAS NOT
INCLUDED
Review
What are the three ways we have learned to
write numbers?
standard, expanded, and word form
Using All Three Ways to Write a
Number
700 + 80 + 9 = 789
seven hundred eighty nine
Place Value Chart
Hundreds
Tens
Ones
4
3
2
Create a Number
• If I were to give you a number, could you
create it?
• We are going to create numbers using
base-ten blocks!
Meet My Friends
= 1 unit
What happens when you put 10 units together?
Here’s What you Get!
= 1 rod (group of 10)
What Do You Get?
What do you get when
you have 10 of these?
A FLAT!
How many squares are in a flat?
100!
Let’s Make a Number
325
Try a Few at Your Seat
1) 32
4) 341
2) 47
5) 125
3) 234
6) 552
How About a Four Digit Number?
1,232
Why is a Place Value Chart
Important?
Hundreds
Tens
Ones
3
7
8
The value of the
3 is 300.
The value of
the 7 is 70
The value of 8
is 8.
Here’s a Magic Trick!
You can always find the “value” of a number
by simply replacing the digits with zeros!
Example
762
The first number is 7, so how
many zeroes? (two) The value of
the 7 is 700.
Examples
Find the value of the underlined digits in the
following numbers.
1) 762
3) 4,321
2) 588
4) 874
Find the Value
764,323
Find the value of any of the
numbers.
How Do You Read Numbers?
How would you read the number…
764,323
Say the word
“thousand”
Practice a Few
1) 56
5) 6,791
2) 781
6) 4,208
3) 320
7) 22,082
4) 4,652
8) 43,983
HOW ABOUT THIS ONE!
432,987,432
Say “millions”