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Leap year occurs every fourth year; but one in every 400 years is omitted.

To find whether a year be a Leap year, divide by 4; if there be no remainder, the year is Leap year, unless the number of the year be a number of centuries divisible by 4. Thus 1852, 1856, and 1900 are Leap years; but 2000 is not.

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THE

PRINCIPLES OF ARITHMETIC

TAUGHT IN

PROPOSITIONS.

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