How do I work out the square root of a number?
it's simple. - you can use your calculator or use perfect squares to solve one.
perfect squares:
4
9
16
25
36
49
etc.
Need anything else just ask.
To work out the square root of a number, you can follow these steps:
1. If you have a calculator, locate the square root function. It is usually denoted by the symbol √ or by the "sqrt" button. Enter the number for which you want to find the square root and press the function button. The calculator will display the result.
2. If you don't have a calculator or want to find approximate square roots without one, you can use perfect squares as reference points to estimate the square root.
- Determine the perfect squares that are closest to the number for which you want to find the square root. For example, if you want to find the square root of 20, the perfect squares closest to it are 16 and 25.
- Estimate the square root value using the perfect squares you identified. In our example, since 20 is closer to 16 than to 25, we estimate the square root of 20 to be slightly greater than the square root of 16.
3. If you want an exact answer, you can use long division or the Babylonian method to calculate the square root manually. However, these methods are more advanced and involve several steps that may be difficult to explain in a single response.
Remember, calculators are a great resource for quickly obtaining accurate square root values.