How to find the cube of a number from 1 to 100? – Shortcut Methods for finding the cube of a number

Cube of a number means, If any number is multiplied by itself three times, then the product is called the cube of that number. Generally, the cube of a number denoted as, 3 is written a little up to the right of the numbers. Here Discussed different easy methods to find the cube of a number without a calculator. It will help all students to do fast calculations in there regular and commutative exams.

First, remember the cube of a number from 1 to 10.

1 ;

2³= 8 ;

27 ;

64 ;

125 ;

216 ;

343 ;

512 ;

= 729 ;

10³= 1000.

Trick: 1 (Cube of a Number Starting with One ): 11 to 19

Here we calculate the cube of a number starting with one which, means 11 to 19.

Example 1: Find the cube of 13.

Step 1: Write 13 with space in between 1 and 3.

Step 2: Write a square and cube of 3, which is 9 and 27 (as shown in the image below).

Step 3: Write double of the second and third number, which is 6 and 18  below the second and third number as shown in the image below.

Step 4: Add the number vertically 3, 9 and 27 with 6 and 18. So the answer is 2197, as shown in the image below.

for more detail about how to find a cube of number view this video.

Trick: 2 (Cube of a Number End with 1 ): Like 21, 31, 41, 51,…

Here we calculate the cube of a number end with one which means 21,31,41,51,61,71,81 and 91.

Example 1: Find the cube of 21.

Step 1: Write 21 with space in between 2 and 1.

Step 2: Write square of 2 and cube of 2, which is 4 and 8 as shown in the image below

Step 3: Write double of the second and third number, which is 4 and 8  below the second and third number as shown in the image below.

Step 4: Add the number 8,4,2 and 1 with 8 and 4 as shown. So, the answer is 9261.

Trick: 3 (Cube of a Number Same Number ): 11, 22,33,44,55…

Here we calculate the cube of a number same nimber which means 11,22,33,44,55,66,77,88 and 99.

Example 1: Find the cube of 11.

Step 1: Write a cube of 1 in four times on the right side as shown in the image.

Step 2: Then write double the middle of two numbers as shown in the image.

Step 3: Add the number vertically 1,1, 1 and 1 with  2 and 2. So the answer is 1331, as shown in the image.

In the upcoming articles, we will be sharing short tricks to calculate the cube of any number. Stay connected and keep going with practice.

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