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Sawutjan RU

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last 3 solved tasks
Cubes of the same size are stacked in the corner of a room as shown. How many cubes are there?
How many cubes are there?
MATH PUZZLE: Can you replace the question mark with a number?

Eclipse

In 1778, David Rittenhouse observed a total solar eclipse in Philadelphia. In a letter to him, dated 17 Jul 1778, Thomas Jefferson wrote that "We were much disappointed in Virginia generally on the day of the great eclipse, which proved to be cloudy." Rittenhouse (1732-1796) was not only an American astronomer, but also a mathematician and public official. He is reputed to have built the first American-made telescope and was the first director of the U.S. Mint (1792-1795).

Fun at the zoo!

Little Johnny wanted to go to the zoo and pestered his parents for days. Finally his mother talked his reluctant father into taking him.

"So how was it?" his mother asked when they returned home.

"Great," Little Johnny replied.

"Did you and your father have a good time?" asked his mother.

"Yeah, Daddy especially liked it," exclaimed Little Johnny excitedly, especially when one of the animals came home at 30 to 1!"

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