Mathematics GCSE
Exact evaluation and checking by expansion
What Exact evaluation and checking by expansion means in Mathematics GCSE, as defined for AQA.
Definition of Exact evaluation and checking by expansion
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Read the wording for your board, then hide it and explain Exact evaluation and checking by expansion in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Work out the exact value or simplified power before looking at the options, and check index-law answers by expanding small cases.
Topics that use Exact evaluation and checking by expansion
- Structure and calculation (AQA GCSE)
Related terms
- Calculating with powers of 10
- Checking answers by substitution
- Checking for repeats and omissions
- Coefficient
- Conjugate
- Converting between ordinary and standard form
- Counting outcomes in context
- denominator
Using Exact evaluation and checking by expansion in the exam
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