Place Value

September 4, 2012

Eq: What is place value? How are the values of each

digit determined?

Say What?

What if I said each digit has a value of 10 times the number to the

right.What does this mean?

Try this to see if you understand.

2, 347Let’s find the value of the 3

3 x 10 = 30 30 x ___ = 30010

Your turn!

Prove to me that the underlined digit is 800.

512,840

8 x 10 = 8080 x 10 = 800

Challenge: Prove the value of the underlined digit.

746,9826 x 10 = 60

60 x 100 = 6,000

What’s That Number

976,852Is there another way you can write this number?

Did anyone say expanded form?

900,000 + 70,000 + 6,000 + 800 + 50 + 2 What about word form

Nine hundred seventy six thousand eight hundred fifty two

Write the following number in• Number form• Expanded form • Word form

Draw this chartHundred

Thousands Ten

ThousandsThousands Hundreds Tens Ones

Choose 6 unifix cubes out of the bag. Each color coincides with the color on the table. Write the value of your number. Each person should have at least one turn.