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Numbers & Operations

Absolute Value

Absolute value is the distance a number is from zero on the number line — it is always positive or zero.

Think of absolute value as "how far?" — distance is never negative!

Visualize It

Absolute Value = Distance from Zero on the Number Line

Example 1 — Find |−8|

-8 is 8 units away from zero, so |−8| = 8

-10-9-8-7-6-5-4-3-2-10123456789108 units−80

Example 2 — Solve |x| = 5

Both −5 and 5 are exactly 5 units from zero → x = −5 or x = 5

-8-7-6-5-4-3-2-10123456785 units5 units−505

Example 3 — Compare |−12| and |9|

|−12| = 12 units from zero, |9| = 9 units from zero → |−12| > |9|

-14-13-12-11-10-9-8-7-6-5-4-3-2-10123456789101112131412 units9 units−1209

Key Insight

Absolute value is always zero or positive — distance can never be negative.
|−8| = 8  ·  |8| = 8  ·  |0| = 0

Watch & Learn

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Worked Examples

Follow along with these step-by-step examples. Take your time — there's no rush!

1Example 1

Problem

Find |−8|

Step-by-Step Solution

1

Absolute value means distance from zero.

2

-8 is 8 units away from zero.

3

|−8| = 8

Answer

8

2Example 2

Problem

Solve: |x| = 5

Step-by-Step Solution

1

We need all numbers whose distance from zero is 5.

2

Both 5 and -5 are exactly 5 units from zero.

3

So x = 5 or x = -5.

Answer

x = 5 or x = -5

3Example 3

Problem

Compare: |−12| and |9|

Step-by-Step Solution

1

|−12| = 12 (distance of -12 from zero)

2

|9| = 9 (distance of 9 from zero)

3

12 > 9, so |−12| > |9|

Answer

|−12| > |9|

4Example 4

Problem

Evaluate: |3 − 10|

Step-by-Step Solution

1

First compute inside the absolute value: 3 − 10 = −7.

2

Then take the absolute value: |−7| = 7.

Answer

7

5Example 5

Problem

Is |−4| equal to |4|? Explain.

Step-by-Step Solution

1

|−4| = 4 (distance of −4 from zero is 4 units).

2

|4| = 4 (distance of 4 from zero is 4 units).

3

Yes — they are equal because absolute value measures distance, not direction.

Answer

Yes, |−4| = |4| = 4

Your Turn — Practice Problems

Try all 5 problems on your own first. Write out your work — that's how it sticks!

💡 Tip: Don't peek at the answers until you've genuinely tried each one.

1

Find |−15|

2

Find |7|

3

Solve: |x| = 11

4

Which is greater: |−20| or |15|?

5

Find |0|

6

Evaluate: |−6 + 2|

7

Evaluate: |5 − 12|

8

Solve: |x| = 0

9

Is |−3| greater than, less than, or equal to |3|?

10

Evaluate: |−100|

11

Find |−2.5|

12

Which is farther from zero: −8 or 6?

Finished all 12? Give yourself a pat on the back — then check your work!

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