1. Enter the room code “Reisnermath”
Go to socrative.com
Enter the room code “Reisnermath”

2. 2-2 Thousands to Thousandths
“I can read, write, and model, whole and decimal numbers”

6. Look at the place value chart, do you notice any patterns with the names?

7. Open your activity book to page 37, pull out the cards in your bucket
Look for patterns on the cards…Do you notice anything?
With your cards put down the number 2,435 in standard form
What do the little numbers in the upper corner represent?
The value of the digit that shows in that place value

8. Use your cards to create the following numbers
Create a number a card in the ones place and a card in the tenths place
Create the number and say it out loud to your partner
Create a number a card in the tens, ones, tenths, and hundredths place
Do the same as above
Create a number with at least a card in the hundreds and a card in the thousandths place
Create a number that has at least 2 zeroes in it

9. Expanded Form for Decimals
Write the following # on your MathBoard
35,026
Can anyone write this in expanded form?
Think of the number cards we worked with yesterday
30, ,

10. Write the following #s in expanded form
6,713
9,004
14,804
7,510
= 6, = 9, = 10, , = 7,

11. Expanded Form for Decimals
Write the following # on your MathBoard
57.39
Can anyone write this in expanded form?
Think of the number cards we worked with yesterday
Or… We can use fractions

12. Write the following #s in expanded form
.713
4.628
26.301 5,
= = = = 5, ,

13. Expanded notation using powers of 10
We are getting very good at writing expanded notation
What if I asked you to re-write a number “as the sum of products of each digit and it is place value”
Huh??
What are the math words we see in that statement?
Sum- We are adding something
Products- We are multiplying something
Digit- We are working with numbers 1-9
Place value- We are going to be working with values from our place value chart

14. Expanded notation using powers of 10
Write this number in expanded form on your Math Board:
9,172 9,
Now write this number “as the sum of products of each digit and it is place value”

15. Write this number “as the sum of products of each digit and it is place value”9,
What place values are we dealing with?
So what values are we going to multiply by?
(_____ x 1,000) + (_____ x 100) + (_____ x 10) + (_____ x 1)
This is called “Expanded form with powers of 10”

16. Write the following numbers in “Expanded form with powers of 10” ex: (_____ x 1,000) + (_____ x 100) + (_____ x 10) + (_____ x 1)
3,459
7,504
25,059
2,923.5
= (3 x 1,000) + (4 x 100) + (5 x 10) + (9 x 1) = (7 x 1,000) + (5 x 100) + (4 x 1) = (2 x 10,000) + (5 x 1,000) + (5 x 10) + (9 x 1) = (2 x 1,000) + (9 x 100) + (2 x 10) + (3 x 1) + (5 x 1 10 )

17. Now write 4,809 on your MathBoard
Rewrite the number in:
Word Form
Expanded Form
Expanded Form using powers of ten
Answers
Four thousand, eight hundred nine 4,
(4 x 1,000) + (8 x 100) + (9 x 1)
Any Patterns?
We don’t have to write down expressions for zero
All forms equal the same value
The power of 10 has the same number of zereos as the expanded form
Power of ten used for the expression is the same as the digit’s place value

18. Expanded notation using powers of 10
Write this number in expanded form on your Math Board:
34.52
Now write this number “as the sum of products of each digit and it is place value”

19. Write this number “as the sum of products of each digit and it is place value”
What place values are we dealing with?
So what values are we going to multiply by?
(_____ x 10) + (_____ x 1) + (_____ x .1) + (_____ x .01)
This is called “Expanded form with powers of 10”

20. Write the following numbers in “Expanded form with powers of 10” ex: (_____ x 10) + (_____ x 1) + (_____ x ) + (_____ x ) Think about the place values!!
= (8 x .1) + (7 x .01) + (1 x .001) = (8 x 1 10 ) + (7 x ) + (1 x ) = (4 x 1) + (3 x .1) + (6 x .001) = (4 x 1) + (3 x 1 10 ) + (6 x )
.871

21. Write the following numbers in “Expanded form with powers of 10” ex: (_____ x 10) + (_____ x 1) + (_____ x ) + (_____ x ) Think about the place values!!
70.063 9,
= (7 x 10) + (6 x .01) + (3 x .001) = (7 x 10) + (6 x ) + (3 x ) = (9 x 1,000) + (6 x 100) + (2 x 10) + (4 x 1) +(3 x .1) + (7 x .01) + (8 x .001) = (9 x 1,000) + (6 x 100) + (2 x 10) + (4 x 1) +(3 x 1 10 ) + (7 x ) + (8 x )

22. PLACE VALUES CHART