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There is no such number.

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โˆ™ 2012-12-08 19:20:51
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Q: What square number can be taken away from 100 to make 21?
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Select the other number so that it is bigger than the square number!

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I don't know if this is what you mean, but to make a normal number a square number, you have to times it by itself*****I suspect though, that the answer is as follows:A square number is one that is the product of some integer multiplied by itself. This second integer is the square root of the original number. Thus, 9 is a square number since 3*3 = 9

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A perfect square is the square of an integer, i.e., an integer multiplied by itself. For example, 25 is a perfect square, because 5 x 5 = 25. But, in literal mathematical terms, a perfect number is a positive integer that is the sum of its proper positive divisors, excluding the number itself. A square number is also called a "perfect square", so an example of a square number is above. So, a perfect square number would have to be a number that is both perfect and square, and there are yet to be any of these numbers "discovered".

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How do you evaluate a square root?

You know to find out which out which number has been timed by itself to make the number in the square root. For example: If the number inside the square root is 49, you need to find out which number has been timed by itself to make 49. As you may know, the number inside the square root is always a square number, so I would advise you to learn the list of square numbers. 7 x 7= 49, so the square root of 49 is 7. Remember that Evaluate simply means work out. So when to asked to evaluate a square number, cube number, square root, cube root etc., simply just work it out. Evaluating powers and roots is grade D in maths.

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The square roots of any positive number are the positive and negative number which can be multiplied together to make that number. In this instance, sqrt(64) = ±8.