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Calculate the number 250

NUMBERMANIA: Calculate the number 250 using numbers [2, 5, 1, 7, 57, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 37

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

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Math teacher

I've decided to become a math teacher, but I'm only going to teach subtraction.

I just want to make a difference.

Found on reddit, authorYoureAMuenster

Image by InstagramFOTOGRAFIN from Pixabay

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Glenn L. Martin

Born 17 Jan 1886; died 4 Dec 1955 at age 69.Glenn Luther Martin was an American aeronaut and inventor whosebombersand flying boats played important roles in WW II. His first planes were built in collaboration with mechanics from his auto shop, working in a disused church building that Martin rented. In 1909, Martin made his first successful flight; by 1911 he numbered among the most famous of the “pioneer birdmen.”He incorporated the Glenn L. Martin Aircraft Company in 1912 as a manufacturer, and remained for forty years the senior aircraft manufacturer in the U.S. The vast majority of the more than 11,000 planes built by the company before it ceased producing aircraft in 1960, Martin Bombers pioneered the doctrine of airpower in the 1920's to 1930's and served in all theaters in World War II.

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