How Do You Find Cube Root Of A Number Without Using Log-Tables Or Computers?
Try the method at this link. To find a cube root by the “longhand” method, we proceed very much as we do to find a square root by hand. I intersperse numbered steps with an example. We will find the cube root of 113 to two decimal places. 1. Draw a cube root symbol, or radical, with the number whose root you are seeking underneath. Start with the decimal point and mark off digits in both directions in groups of three. Put a decimal point above the radical, and directly above the other decimal point. . 3/———– \/ 113.000 000 2. Start with the first group of 1, 2, or 3 digits. Find the largest cube of a single-digit integer less than it. Write the single digit above the radical, and its cube under the first group. Draw a line under that cube, and subtract it from the first group. 4. 3/———– \/ 113.000 000 64 ——- 49 3. Bring down the next group below the last line drawn. This forms the current remainder. Draw a vertical line to the left of the resulting number, and to the
