Cube root calculator
Cube root calculator
Sure! Here are the steps to use a cube root calculator:
- Open a web browser and search for “cube root calculator” in your preferred search engine.
- Click on a reliable calculator website that provides a cube root calculator, such as calculator3.com.
- Locate the cube root calculator on the website. It may be labeled as “cube root” or “3√x”.
- Enter the value you want to find the cube root of into the calculator. You can either type it in using your keyboard or use the virtual keypad provided by the calculator.
- Press the “Calculate” button to get the cube root of the input value.
- Review the result that appears on the calculator screen. The cube root value will be displayed in either decimal or fraction form, depending on the calculator.
- If you need to find the cube root of another value, simply clear the calculator and repeat the steps above.
That’s it! You can now use a cube root calculator to quickly and easily find the cube root of any number.
Cube root step by step
Sure! Here are the steps to find the cube root of a number by hand:
- Write down the number you want to find the cube root of.
- Divide the number into groups of three digits, starting from the right-most digit. If there are any remaining digits at the left end, add zeros to create a group of three. For example, if you want to find the cube root of 123456, you would group it as follows: 123 456.
- Find the largest cube that is less than or equal to the leftmost group of three digits. For example, since 5^3 = 125, and 125 is the largest cube less than or equal to 123, we know that the first digit of the cube root must be 5.
- Subtract the cube from the leftmost group of three digits and bring down the next group of three digits to the right of the remainder. For example, since 5^3 = 125 and 123 – 125 = -2, we write -2 and bring down the next group of three digits, giving us -200.
- Double the first digit of the current partial root and write it as the next digit in the partial root. For example, since 2 x 5 = 10, we write 10 as the next digit of the partial root, giving us 5 10.
- Find a value to append to the current partial root such that the cube of the new number multiplied by the current partial root is as close as possible to the remaining digits. This value will be the next digit of the partial root. For example, we need to find a number x such that (510 + x)^3 is as close as possible to 200. By trial and error, we can find that x = 4 gives us a value of 196, which is closest to 200.
- Repeat steps 4 through 6 until you have found the cube root to the desired level of accuracy.
- Check your answer by cubing the partial root you have found. If you have calculated the cube root correctly, it should be very close to the original number you started with.
- That’s it! Following these steps, you can find the cube root of any number by hand.