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Calculate the number 678

NUMBERMANIA: Calculate the number 678 using numbers [3, 8, 9, 5, 80, 315] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 30

The first user who solved this task is Sanja Šabović.

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John Caparulo: Yard Sales on Memorial Day

Every year back in Ohio, we would have yard sales on Memorial Day weekend, so its like Mardi Gras for white trash.

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First day of New Madrid earthquakes

In 1811, the first earthquake struck of a series, known as the New Madrid earthquakes, until 7 Feb 1812, with many aftershocks. A second earthquake followed six hours later. Both had an epicenter in northeastern Arkansas, were about magnitude 7 - 7.5, and were felt hundreds of miles away. They remain among the most powerful earthquakes in the United States. Within three months there were two more equally strong earthquakes. On 23 Jan 1812, the epicenter was in the far southeast corner of Missouri, and another on 7 Feb 1812 occurred with an epicenter further north, near New Madrid, Missouri. Contemporary accounts tell of houses damaged, chimneys toppled, and remarkable geological phenomena and landscapes changed. The New Madrid fault reamins a concern.«

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