1. 1.11
“I can explain how place value is related to addition and subtraction of decimals.”

2. Why is this important? Money Shopping Paycheck
Can anyone think of times in their life when they would need to know how to add and subtract decimals?

3. Vocabulary
Place Value - The _____________ assigned to the place that a ________ occupies in a number.
Ex. 32,849
Increase - to go _____ , add. To make a number ___________.
Decrease - to go _______, subtract. To make a number ___________.
Digit - is a number.

4. Place Value
4,259,

5. Rules 34.67 - 3.55 Align the _________ Align the __________
Bring the decimal _______ _________
Then Add or Subtract
34.67

6. Example
22.48
+ 3.02
Explain:
I added the 8 and 2 because they are both in the hundredths. I added the 4 and 0 because they are both in the tenths place. I added the numbers 2 and 3 because they are both in the ones place. I just brought the two down in the tens place.

7. Practice :)
= a
A B C
= n
A B. 2.1 C. 2.18

8. Question?
Tiffany has $ She went to the store and bought a robe for $ She also bought a pair of slippers for $ How much money will Tiffany have left?
A. $2.15 B. $32.84
C. $5.71 D. $4.22

9. Practice
Order Decimals

10. What did we learn today?
List