1. Adding and Subtracting Decimals

2. Adding and Subtracting Decimals
Example 1 Add
13.430
22.054
Note:
When Adding and Subtracting Decimals it is imperative to line up the decimals!
Original Expression 1 1
Add decimals
Final answer

3. Adding and Subtracting Decimals
Solve the following problems.
1.) )
3.) 11.8 – ) – 13.21

4. Adding and Subtracting Decimals
Solve the following problems using mental math.
1.) = 2.) =
3.) 4.5 – 0.7 = 4.) =

5. Adding and Subtracting Decimals
Evaluating Decimal Expressions
Example: x
when x = 5.29
3.801
9.091
Try these: Evaluate the following expressions for the given variable’s value.
1.) 7.52 – s when s = 2.9
2.) (6) + b when b = 3.95
Original Expression
Substitute value of variable
Add decimals
Final answer

6. Adding and Subtracting Decimals
Real-Life Application
Drew Brees and Mitchell Trubitsky’s current 2018 quarterback rating are and 97.7, respectively. What is the difference between their two ratings?

7. Adding and Subtracting Decimals
Real-Life Application
2016 U.S. Olympic Trials – Day 2 Laurie Hernandez’s Final Scores
What was Laurie Hernandez’s combined finals score at Day 2 of the 2016 U.S. Olympic Trials?
Simone Biles’ combined finals score at Day 2 of the 2016 U.S. Olympic Trials was How much greater was Biles’ score compared to Hernandez’s?
Event
Score
Floor exercise
14.7
Balance beam
15.15
Vault
15.7
Uneven bars
14.75