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Look at this number sequence:
12, 14, 16, 18, 20, ...
The sequence starts at 12 and the rule is to add 2 to the previous term.
The 1st term is 12
The 2nd term is 14
The 3rd term is 16
The 4th term is 18
The 5th term is 20
Example
A sequence starts at 15 and follows the rule to add 3 to the previous term.
What is the 5th term of this sequence?
Answer
The 1st term is 15
The 2nd term is 15 + 3 = 18
The 3rd term is 18 + 3 = 21
The 4th term is 21 + 3 = 24
The 5th term is 24 + 3 = 27
Does that make sense?
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