Mathematics GCSE
Upper and lower bounds in calculations
What Upper and lower bounds in calculations means in Mathematics GCSE, as defined for AQA.
Definition of Upper and lower bounds in calculations
Check what you remember
Read the wording for your board, then hide it and explain Upper and lower bounds in calculations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Used in calculations with rounded values, where the lower bound is the stated value minus half the unit and the upper bound is the stated value plus half the unit.
Topics that use Upper and lower bounds in calculations
- Measures and accuracy (AQA GCSE)
Related terms
- Applying bounds to real-life measurement problems
- Approximation by rounding
- Checking technology-obtained answers
- Error intervals and inequality notation
- Estimation to check calculations
- Limits of accuracy
- Lower limit
- Maximising and minimising sums and differences
Using Upper and lower bounds in calculations in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge