What is the product of the first five positive integers?

A. 120
Posted in:  Numbers -  Arithmetic -  Mathematics

Which of the following numbers is a perfect square?

B. 64
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What is the result of 7! (7 factorial)?

A. 5040
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What is the sum of the first 10 positive integers?

B. 55
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What is the difference between 1000 and 678?

A. 322
Posted in:  Numbers -  Arithmetic -  Mathematics