Mathematics GCSE
Reasonableness check
What Reasonableness check means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of Reasonableness check
Check what you remember
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Reference: Pearson Edexcel
A comparison of a proposed answer with expected size, sign, units or another valid calculation.
Topics that use Reasonableness check
- Number - Measures and accuracy (Pearson Edexcel GCSE)
Related terms
- calculating with bounds
- compound measures
- Error interval
- error intervals
- Inverse operation
- Limits of accuracy
- Lower limit
- Problem solving in context
Using Reasonableness check 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.
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