Mathematics GCSE
First differences
What First differences means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of First differences
Check what you remember
Read the wording for your board, then hide it and explain First differences in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The changes obtained by subtracting each term from the next.
Topics that use First differences
- Algebra - Sequences (Pearson Edexcel GCSE)
Related terms
- checking a term
- coefficient of n²
- Common ratio
- constant
- Fibonacci-type sequence
- First difference
- geometric progressions
- nth term expression
Using First differences 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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