How to find cube of any number

Share
young, woman, girl

Cube means the number is multiplied itself by 3 times. Cube denoted by (3). Example 53=5×5×5  =125. It is easy to find small number cube problem occurs for big numbers.

Bellow this trick video provided it will help you to understand this trick better.

                                         Related topics:-

                                        Find cube root of any number

                                          Find square of any number

                                        Find square root of any number


short trick:-

It is very simple let’s start

Let’s take example 123

Step 1: Here 1st number is 1 and 2nd number is 2

        Write this way

        13_+12_+ 1_+ _    (1st number is 1 start from 1)

Step 2:-

         _+_ 2+ _22+ 23 (2 is 2nd number from ending start writing)

Step 3:-

                       Marge step 1 and step 2

                         13+12×2+ 1×22+ 23

                     By solving this we get:-1+2+4+8

Step 4:- double middle numbers    4  8 (double of 2 is 4 and double of 4 is 8)

Step 5:- adding these numbers 1+6+12+8 (2 and its double 4 added ,4 and its double 8 added)

Final step:-if there is two digit number add 1st digit to previous number and 2nd digit sit as it is

                             1+6+12+8

 Now we get result 123=       8(single number sit as it is)

                     28 (from 12 2 sit directly ,addition of to 1 previous number that 6)

                   728(6+1=7)

                   1728(1 sit as it is )

next question 143

Step 1: Here 1st number is 1 and 2nd number is 4

        Write this way

        13_+12_+ 1_+ _    (1st number is 1 , start from 1)

Step 2:-

         _+_ 4+ _42+ 43 (2 is 2nd number from ending start writing)

Step 3:-

                       Marge step 1 and step 2

                         13+12×4+ 1×42+ 43

By solving this we get:-1+4+16+64

Step 4:- double middle numbers    4 and 16 (double of 4 is 8 and double of 16 is 32)

Step 5:- add these numbers   1+12+48+64 (4 and its double 8 added ,16 and its double 32 added)

Final step:-if there is two digit number add 1st digit to previous number and 2nd digit sit as it is

                             1+12+48+64

 Now we get result 143=       

       4(single number sit as it is and 6 added previous number)

       44 (6+48=54, 4 comes 2nd places and and 5 added to previous number)

        744(5+2=7 and i 1 added to previous number)

        2744(1 +1=2 )

Try to solve some example by yourself.It helps a lot for better under standing.

Some important cube table:-

13

1

23

8

33

27

43

64

53

125

63

216

73

343

83

512

93

729

103

1000

113

1331

123

1728

133

2197

143

2744

153

3375

163

4096

173

4913

183

5832

193

6859

203

8000

Leave a Reply

Your email address will not be published. Required fields are marked *