Download Name Date Class Adding Integers with the Same Sign Practice and

Name _______________________________________ Date __________________ Class __________________
LESSON
17-1
Adding Integers with the Same Sign
Practice and Problem Solving: D
Find each sum. White counters are positive. Black counters are
negative. The first one is done for you.
2. 4   6  
1. 5  2 
7
a. How many counters are there? _______
a. How many counters are there? _______
b. Do the counters represent positive
b. Do the counters represent positive
positive
or negative numbers? ______________
c.
or negative numbers? _________________
7
5  2  ______________
c.
4   6   _______
Model each addition problem on the number line to find each sum.
The first one is done for you.
5
3. 3   2   ________
4. 5   1  ________
5. 4   3   ________
6. 1   6   ________
Find each sum. The first one is done for you.
4
7. 3   1  ________
8. 6   2   _______
9. 12   7   _______
10. 20   15   _______
Solve.
11. The table shows how much money Hannah withdrew in 3 days.
Day
Dollars
Day 1
Day 2
Day 3
5
1
2
Find the total amount Hannah withdrew. ___________________________
Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
347
Name _______________________________________ Date __________________ Class __________________
LESSON
17-2
Adding Integers with Different Signs
Practice and Problem Solving: D
Show the addition on the number line. Then write the sum. The first
one is done for you.
1. 2  (3)
2. 3  (4)
1
_______________________________________
________________________________________
Find each sum. The first one is done for you.
3. 4  (9)
4. 7  (8)
5
_______________________
6. 5  7
_______________________
9. 2  (7)
_______________________
________________________
7. 9  (5)
5. 2  1
________________________
8. 1  9
________________________
10. 6  (4)
________________________
________________________
11. 15  9
________________________
Solve. The first one is done for you.
12. The temperature dropped 12F in 8 hours. If the final temperature was
7°F, what was the starting temperature?
5F
________________________________________________________________________________________
13. At 3 P.M., the temperature was 9F. By 11 P.M., it had dropped 31F.
What was the temperature at 11 P.M.?
________________________________________________________________________________________
14. A submarine submerged at a depth of 40 feet dives 57 feet more.
What is the new depth of the submarine?
________________________________________________________________________________________
15. An airplane cruising at 20,000 feet drops 2,500 feet in altitude. What is
the airplane’s new altitude?
________________________________________________________________________________________

Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
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