Use a calculator and press the square root button.
Use the exponent form: square root of x = x^(1/2).
For perfect squares, find the number that multiplied by itself gives the original number.
Estimate between nearby perfect squares.
Use the long division method for manual square root calculation.
Use Newton’s method for faster approximation.
For decimal numbers, move the decimal point in pairs before finding the root.
For negative numbers, use complex numbers; no real square root exists.
Check your answer by squaring it to see if it matches the original number.