Arithmetic Sequence
Also known as a Arithmetic Progression
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1) Write down an expression for the nth term of this arithmetic sequence ?
7, 12, 17, 22, 27
Look at the difference between two consecutive numbers. Subtract the lowest from the highest.
The difference is 5, so the nth term is related to the 5 times table.
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Compare the sequence with the numbers in the 5 times table.
Subtract the number in the 5 times table from the number in the sequence.
This gives a constant difference of +2.
The nth term expression is 5n + 2
2) Write down an expression for the nth term of this arithmetic sequence ?
2, 5, 8, 11
3) Write down an expression for the nth term of this arithmetic sequence ?
5, 9, 13, 17
4) Write down an expression for the nth term of this arithmetic sequence ?
28, 23, 18, 13
5) Write down an expression for the nth term of this arithmetic sequence ?
2, 9, 16, 23
6) Write down an expression for the nth term of this arithmetic sequence ?
3, 9, 15, 21, 27
7) Write down an expression for the nth term of this arithmetic sequence ?
3, 7, 11, 15, 19
8) Write down an expression for the nth term of this arithmetic sequence ?
4, 7, 10, 13, 16
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