Question

how can we calculate cube of any numbet

Answer 1

Very often we have to find the cube, i.e. third power of 2 digit numbers. Cubes of very large numbers are rarely used.

Cubes of all the single digits should be memorized. Find below the table of cubes of first ten natural numbers –

13 = 1, 23 = 8, 33 = 27, 43 = 64, 53 = 125,

63 = 216, 73 = 343, 83 = 512, 93 = 729, 103 = 1000

To find the cube of any 2 digit number, we have to take the following steps

First Step: The first thing we have to do is to put down the cube of the tens-digit in a row of 4 figures. The other three numbers in the row of answer should be written in a geometrical ratio in the exact proportion which is there between the digits of the given number.

Second Step: The second step is to put down, under the second and third numbers, just two times of second and third number. Then add up the two rows.

Answer 2

any numbet will three time multiple