1. Notes Over 2.3 Use a number line to find the sum. right 6 left 1
l l l l l l l l l
l l l l l l

2. Notes Over 2.3 Use a number line to find the sum. left 4 l l l l l l
left 2
left 3
l l l l l l l

3. Notes Over 2.3 Use a number line to find the sum. left 1 left 4
l l l l l l l
left 7
right 1
l l l l l l l l

4. Notes Over 2.3 Name the property that makes the statement true.
Communitive Property of Addition
Identity Property of Addition
Associative Property of Addition
Inverse Property of Addition

5. Notes Over 2.3 Yes, the store made a profit of $594.65.
Use addition in real life.
11. A bookstore had a first-quarter profit of $342.60, a second-quarter loss of $78.35, a third-quarter loss of $127.40, and a fourth-quarter profit of $ Did the store make a profit during the year? Explain.
Add the negatives together
Add the positives together
Subtract the results
Yes, the store made a profit of $

6. Notes Over 2.3 A loss of $0.25 Use addition in real life.
12. The price of a share of stock increased $3.00 on Monday, decreased $1.25 on Wednesday, and decreased $2.00 on Friday. Find the overall change in the price of a share of stock.
Add the negatives together
Combine the positives and negatives
A loss of $0.25

7. Notes Over 2.3