Place Value:Expanded Notation

Lesson 5

Place Value

The name of the “place” where a digit is within a given number

e.x. 456,7227 = hundreds place value

Expanded Notation

“Expanding” a number (making it longer) by naming each digits place value

Math Vocabulary

Place Value is…

_ _ _, _ _ _, _ _ _, _ _ _ .

*place value of whole numbers is identified by “backwards” order; reading right to left

Place Value

When writing a number in “expanded notation”:

Steps:1. Name each digits place value

2. Place a “+” sign between each digit

Ex. 3,724

3 = thousands

7 = hundreds

2 = tens

4 = ones

In expanded notation: 3 thousands + 7 hundreds

+ 2 tens + 4 ones

Expanded Notation

Write in “expanded notation”:

1,203,407

1 millions+

2 hundred thousands+

3 thousands+

4 hundreds+

7 ones

**0’s do NOT need to be identified, unless asked for

Expanded Notation…

Write each number in expanded notation:

a) 2,519

b) 6,006,600

Practice: