Calculate the number 1416
[5962] Calculate the number 1416 - NUMBERMANIA: Calculate the number 1416 using numbers [9, 4, 5, 4, 54, 693] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 13 - The first user who solved this task is Thinh Ddh
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Calculate the number 1416

NUMBERMANIA: Calculate the number 1416 using numbers [9, 4, 5, 4, 54, 693] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Thinh Ddh.
#brainteasers #math #numbermania
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A boy was teaching a girl arit...

A boy was teaching a girl arithmetic, he said it was his mission. He kissed her once; he kissed her twice and said, "Now that's addition." In silent satisfaction, she sweetly gave the kisses back and said, "Now that's subtraction." Then he kissed her, she kissed him, without an explanation. And both together smiled and said, "That's multiplication." Then her Dad appeared upon the scene and made a quick decision. He kicked that boy three blocks away and said, "That's long division!"
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Eraser

In 1770, Dr. Joseph Priestley made the first mention in English that a piece of a rubber substance could erase marks from black-lead pencils. At the end of the Preface to his work, Familiar Introduction to the Theory and Practice of Perspective, he described it: "Since this Work was printed off, I have seen a substance excellently adapted to the purpose of wiping from paper the mark of a black-lead-pencil. It must, therefore, be of singular use to those who practise drawing. It is sold by Mr Nairne, Mathematical Instrument Maker, opposite the Royal Exchange. He sells a cubical piece of about half an inch for three shillings; and he says it will last several years."*
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