# Lesson Worksheet: Evaluating Numerical Expressions: Absolute Value Mathematics

In this worksheet, we will practice evaluating numerical expressions involving absolute value.

**Q3: **

Matthew and Ethan were comparing their elevations. Matthew’s position was 15.5 m below sea level, while Ethan’s position was 30 m above sea level.

Which of the following expressions represents the difference in elevation between Matthew and Ethan?

- A
- B
- C
- D
- E

Calculate the difference in elevation.

**Q6: **

Calculate .

**Q9: **

Which of the following is true?

- A
- B
- C