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least common denominator

The least common multiple of the denominators of two or more fractions.

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common difference

The difference between any two consecutive terms in an arithmetic square.

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mean

The sum of data divided by the number of items in the data set, also called the average.

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median

In a set of data, the middle number of the ordered data, or the mean of the two middle numbers.

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terminating decimal

A decimal whose digits end. Can be written as a fraction with a denominator of 10, 100, 1000 and so on.

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arithmetic sequence

A sequence in which the difference between any two consecutive terms is the same.

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