Q:
# What Is 20 Squared?

The number 20 squared is 20 times 20, or 400. To square a number means to multiply that number by itself. It is notated by writing the base number, which in this case is 20, with the number 2 in superscript after it.

Continue ReadingSince 20 squared is 400, the square root of 400 is 20. The square root of a given number is the number that is multiplied by itself to yield that particular number. All squares are positive, but square roots are positive or negative. For example, the other square root of 400 is -20. Since multiplying two negatives makes a positive, -20 times -20 also equals 400.

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Q:
## What Is Negative Scientific Notation?

A: Negative scientific notation is expressing a number that is less than one, or is a decimal with the power of 10 and a negative exponent. An example of a nu... Full Answer >Filed Under: -
Q:
## How Is a Number Squared?

A: To square a number, simply multiply the number by itself. For example, 3 squared would literally be 3 multiplied by 3, which is 9. When a number is squared... Full Answer >Filed Under: -
Q:
## What Is the Square Root of 11?

A: The numerical value of the square root of 11 is approximately 3.317, although the exact number has many more decimal places. Because 11 is a prime number, ... Full Answer >Filed Under: -
Q:
## What Are the First Eight Multiples of the Number Six?

A: The first eight multiples of the number six are 6, 12, 18, 24, 30, 36, 42 and 48. Multiples are obtained by multiplying a number by integers, so the multip... Full Answer >Filed Under: