PLACE VALUEThree Ways We Write Numbers

Different Ways to Write a Number

standard form - the normal way we writenumbers

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 NOTINCLUDED

Review

What are the three ways we have learned towrite 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 numberby 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 thefollowing numbers.

1) 762 3) 4,321

2) 588 4) 874

Find the Value

764,323Find the value of any of the

numbers.

How Do You Read Numbers?

How would you read the number…

764,323Say 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!

432,987,432Say “millions”