2. Chapter 1 Introduction to Algebra: Integers
1.4 Subtracting Integers
Chapter 1 Introduction to Algebra: Integers

3. 1.4 Subtracting Integers Objectives
Find the opposite of a signed number.
Subtract integers.
Combine adding and subtracting of integers.
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4. Objective 1: Find the opposite of a signed number.
Opposite integers are the same distance from 0 on the number line but are on opposite sides of 0.
When you add opposites, the sum is always 0. The opposites are also called additive inverses.
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5. Objective 1: Find the opposite of a signed number.
Find the opposite of each number and show that the sum of the numbers is 0. 6 –8
Example
The opposite of 6 is – –6 = 0
The opposite of –8 is 8. –8 + 8 = 0
The opposite of 0 is = 0
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6. Objective 2: Subtract integers.
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7. Objective 2: Subtract integers.
Subtract the integers.
4 – 10
Example
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8. Objective 2: Subtract integers.
Subtract the integers.
–9 – –6
Example
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9. Objective 3: Combine adding and subtracting of integers.
Simplify by completing all the calculations.
–5 – 10 – 12 +1
Example
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