CAIE IGCSE Mathematics Core C2.7.2 Recognise Patterns in Sequences Including the Term to Term Rule and Questions

Practise Core CAIE IGCSE Mathematics by identifying the operation between terms, explaining the pattern and completing related sequences, tables and diagrams.

Exam points

Write the term-to-term rule from consecutive sequence terms using the stated addition, subtraction or operation.
Explain the calculation that moves from one term to the next and use it to find missing terms or extend the sequence.

[Maximum number: 2]

These are the first five terms of a sequence.
$7\quad a\quad b\quad c\quad31$
In the sequence, the same number is added each time to obtain the next term.
Find the value of each of the terms a, b and c.
$\begin{aligned}a&=\\b&=\\c&=\end{aligned}$

$\begin{aligned}a&=13\\b&=19\\c&=25\end{aligned}$

B1 for 2 terms correct or for 2 terms with a difference of 6.

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CAIE IGCSE Mathematics Core C2.7.2 Recognise Patterns in Sequences Including the Term to Term Rule and Questions question 1