Assuming you have a scientific calculator which has a square root button ([√]) the method depends upon which calculator you have, and in what mode the calculator is set.
The most recent Casio calculators have two modes of entry: MathIO and LineIO. InMathIO the sequence is:
[√] [<expression>] [=]
In LineIO, if the <expression> is more than one number brackets needs to be entered:
[√] [(] [<expression>] [)] [=]
This LineIO type of entry is used on the older Casio calculators. With older models of Casio calculators, and other manufacturers the functions work on the displayed value which is replaced by the value if the function. With these calculators, the expression is entered first and then the square root key is pressed:
[(] [<expression> [)] [√]
parentheses are only needed if the square root is of an expression.
Examples:
Square root of 16
MathIO: [√] [1] [6] [=]
LineIO: [√] [1] [6] [=]
Other: [1] [6] [√]
Using Pythagoras to find the hypotenuse of a right angle triangle with sides 3 and 4:
MathIO: [√] [3] [x²] [+] [4] [x²] [=]
LineIO: [√] [(] [3] [x²] [+] [4] [x²] [)] [=]
Other:[(] [3] [x²] [+] [4] [x²] [)] [√]
With MathIO the square root symbol extends over the expression as each key is pressed which is why the parentheses are not needed in the last example.
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D. enter the number; press the square root key
Here are the steps: 1. Find the square root button, it usually located at the middle. 2. Press the square root button. 3. Insert a number. 4. Press '='. 5. You get the answer. P.S. These steps belongs to scientific calculator.
Oh, dude, it's like super easy. You just press the square root button on your calculator, type in the number you want the square root of, and voila! The calculator does the math for you. It's like magic, but with numbers.
Assuming the calculator can do exponents, take the number and raise it to the power of 1/2.
I am not aware of a square key on a calculator. To get a square input number to be squared followed by multiply (X) and then = to get the answer. If it is square root your are referring to then insert the number which you want to find the square root of followed by the square root key. This brings up the required answer. Hope this helps.