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### Subtracting Integers

• Subtract integers with the same rules as adding integers.
• Use a number line or absolute value.
1. Simplify any double signs.
2. If integers have opposite values, subtract their absolute values
3. The answer, the difference uses the sign of the larger absolute value

### Subtracting Integers

15 - 27 =
- 12
15 - ( - 27) =
• 15 + 27 =
42
11 - ( - 7) - ( - 2) =
• 11 + 7 + 2 =
• 18 + 2 =
20
- 5 - ( - 5) - ( - 14) =
• − 5 + 5 + 14 =
• 0 + 14 =
14
6 + ( - 10) - ( - 3) - ( + 9) =
• 6 − 10 + 3 − 9 =
• − 4 + 3 − 9 =
• − 1 − 9 =
- 10
| - 9 + ( - 2)| - 13 - ( - 2) =
• | − 9 − 2| − 13 − ( − 2) =
• | − 11| − 13 − ( − 2) =
• 11 − 13 − ( − 2) =
• 11 − 13 + 2 =
• − 2 + 2 =
0
- 9 - ( - 3) + 4| - 7 - ( - 2)| + 10 =
• − 9 − ( − 3) + 4| − 7 + 2| + 10 =
• − 9 − ( − 3) + 4| − 5| + 10 =
• − 9 − ( − 3) + 4(5) + 10 =
• − 9 − ( − 3) + 20 + 10 =
• − 9 + 3 + 20 + 10 =
• − 6 + 20 + 10 =
• 14 + 10 =
24
The temperature was 15 degrees. Now, the temperature is 24 degrees lower. What is the temperature now?
• 15 degrees - 24 degrees =
- 9 degrees
A shark started at 54 inches below sea level and then swam to 97 inches below sea level. What was the shark's change in depth?
• 54 inches - 97 inches =
- 43 inches
A car is backing out of a driveway. The car moves backwards for 6 feet and stops. Then, the car moves back another 7 feet. How far did the car move back?
• - 6 feet - 7 feet =
- 13 feet

*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.

### Subtracting Integers

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

• Intro 0:00
• What You'll Learn and Why 0:06
• Topics Overview
• Vocabulary 0:21
• Integers
• Opposites
• Rules for Multiplying Signs 1:18
• Using a Number Line 2:00
• Example: 2 - 5
• Other Examples 2:52
• Using Number Line: 10 - (-13)
• Rewriting Absolute Value
• Extra Example 1: Subtracting Integers 5:48
• Extra Example 2: Temperature 7:26
• Extra Example 3: Depth 8:51
• Extra Example 4: Change in Yards 11:09