Absolute value
Find the distance of a number from zero, including after substitution.
Legacy Additional Mathematics material; excluded from both GCSE directories. Additional / Further Maths remains coming soon.
- Absolute value means distance from zero.
- Distance is always non-negative.
- Work out the expression inside the absolute value bars first.
Example 1
Evaluate the expression. If
Example 2
Calculate the value of the expression. If
Remember
For example,
Your turn
Question 1
Evaluate.
Check answer
−8 is 8 units from zero.
Question 2
If
Check answer
Question 3
If
Check answer
Question 4
Evaluate.
Check answer
Question 5
If
Check answer
Evaluate.
−8 is 8 units from zero.
If
If
Evaluate.
If