The number 33 has two square roots, which are approximately equal to 5.74 and minus 5.74. All positive real numbers have two real square roots, one positive and one negative.
A square root of 33 is a number that can be multiplied by itself to equal 33. The easiest way to calculate a square root is to use the square root button on a calculator. However, one can estimate the square root of 33 by noticing that the positive square root of 25 is five, and the positive square root of 36 is six, which suggests that the positive square root of 33 is somewhere between five and six.