Calculate the number 1564
[2364] Calculate the number 1564 - NUMBERMANIA: Calculate the number 1564 using numbers [8, 4, 5, 1, 91, 717] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 28 - The first user who solved this task is Erkain Mahajanian
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Calculate the number 1564

NUMBERMANIA: Calculate the number 1564 using numbers [8, 4, 5, 1, 91, 717] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 28
The first user who solved this task is Erkain Mahajanian.
#brainteasers #math #numbermania
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World Teachers' Day Jokes

On 5th October we appreciate our educators with World Teachers' Day! Here are some light-hearted teacher jokes:

Why did the math book look sad?
Because it had too many problems.

Teacher: Give me a sentence beginning with ‘I’.
Student: I is the…
Teacher: Remember you must say ‘I am’ not ‘I is’.
Student: All right. I am the ninth letter of the alphabet.

Q: Who’s the king of the classroom?
A: The ruler.

Q: What’s the longest word in the dictionary?
A: Smiles. Because there’s a mile between the first letter and the last.

Teacher: Why are you late for school?
Student: Because of a sign down the road.
Teacher: What does the sign have to do with you being late?
Student: The sign said, “School Ahead, Go Slow!”

Q: Why did the teacher wear sunglasses on the first day of school?
A: She heard her classes were super bright!

Teacher: If I had 8 oranges in one hand and 10 apples in the other hand, what would I have?
Student: Big hands!

Teacher: We will only have a half-day of school this morning…
Students: Yay!!!!
Teacher: Then we will have the other half this afternoon.

Teacher: What is the most common phrase used in school?
Student: I don’t know!
Teacher: Correct!

Teacher: What are two pronouns?
Student: Who? Me?

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Denis Papin

Born 22 Aug 1647; died c. 1712 .French-English physicist who invented the pressure cooker (1679). He assisted Dutch physicist Christiaan Huygens with air-pump experiments, and went to London in 1675 to work with the English physicist Robert Boyle. A few years later, Papin invented his steam digester (pressure cooker), a closed vessel with a tightly fitting lid that confined the steam at a higher pressure, considerably raising the boiling point of the water. A safety valve of his own invention prevented explosions. Observing that the enclosed steam in his cooker tended to raise the lid, Papin conceived of the use of steam to drive a piston in a cylinder, the basic design for early steam engines. He never built an engine of his own, but his idea was improved by others and led to the development of the steam engine, a major contribution to the Industrial Revolution.
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