The common difference is the difference between two numbers in an arithmetic sequence.
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By subtracting one term from the next the common difference can be found: Using -8 and -13: -13 - -8 = 13 + 8 = -5 → Common difference is -5.
No difference. In this context, highest and greatest mean the same thing.
The common difference is 6; each number after the first equals the previous number minus 6.
arithmetic sequence
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