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Calculating the Cube Root of a number quickly and accurately
Let us see how to calculate cube roots in less than 5 seconds.
Q.1. Find out the cube root of 50653.
Here is how to solve this question:
Let us solve another example to show how the answer can be achieved in less than 5 seconds.
Q.2. Calculate the cube root of 941192.
By Step 1: We get two parts i.e. 941 and 192.
By Step 2: The largest cube less than 941 is 729 (cube of 9). So, ten’s digit is 9.
By Step 3: The ending digit is 2. Hence, unit’s digit is 8. That’s it. 98 is the answer.
Practice it a bit and you would be able to solve this in even less than 5 seconds.