How to learn tables from 12 to 19 

In this blog we are going to discuss about How to learn tables from 12 to 19 and is illustrated below : 

_______________________________________________________________________________

          Let us begin with 13 table , 

                                        13 table

                  13 x 1     =  ?

                  13 x 2     =  ?

                  13 x 3     =  ?

                  13 x 4     =  ?

                  13 x 5     =  ?

                  13 x 6     =  ?

                  13 x 7     =  ?

                  13 x 8     =  ?  

                  13 x 9     =  ?

                  13 x 10   =  ?

We all know that telling 13 table is not that much easier one. But there is a trick finding the multiples of 13 . First of all , write down the table  3 

       13 x 1     =  03 

      13 x 2     =  06 

      13 x 3     =  09 

     13 x 4     =  12     

    13 x 5     =  15 

    13 x 6     =  18

    13 x 7     =  21

    13 x 8     =  24 

    13 x 9     =  27

   13 x 10  30

and then add the digits in the given order ( 1 + 0 , 2 + 0 , … , 9 + 2 , 10 + 3 )

           

       13 x 1     =  0 =   (1 + 0)3

      13 x 2     =  06  =   (2 + 0)6  

     13 x 3     =  09  =   (3 + 0)9  

     13 x 4     =  1 =   (4 + 1)2  

     13 x 5     =  1 =   (5 + 1)5  

     13 x 6     =  18  =   (6 + 1)8  

     13 x 7     =  2 =   (7 + 2 )1 

    13 x 8     =  24  =   (8 + 2)4   

    13 x 9     =  2 =   (9 + 2)7  

    13 x 10   =  3 =   (10 + 3)0

   Finally , we arrived at the answers 

   13 x 1     =  03  =   (1 + 0)3   =   13    

   13 x 2     =  06  =   (2 + 0)6   =   26

   13 x 3     =  09  =   (3 + 0)9   =   39

   13 x 4     =  12  =   (4 + 1)2   =   52

   13 x 5     =  15  =   (5 + 1)5   =   65

   13 x 6     =  18  =   (6 + 1)8   =   78

   13 x 7     =  21  =   (7 + 2 )1  =   91

   13 x 8     =  24  =   (8 + 2)4   = 104 

  13 x 9     =  27  =   (9 + 2)7   = 117

  13 x 10   =  30  =   (10 + 3)3 = 130

                     This trick is applicable to all the numbers between 12 and 19 . 

   Let us see for one more number – say 19 . 

19 x 1   = ?

19 x 2   = ?

19 x 3   = ?

19 x 4   = ?

19 x 5   = ?

19 x 6   = ?

19 x 7   = ?

19 x 8   = ?

19 x 9   = ?

19 x 10 = ?

   Write down the table 9 first and 

19 x 1   = 09

19 x 2   = 18

19 x 3   = 27

19 x 4   = 36

19 x 5   = 45

19 x 6   = 54 

19 x 7   = 63

19 x 8   = 72

19 x 9   = 81

19 x 10 = 90

  Add the digits in the prescribed order ( 1 + 0 , 2 + 0 , … , 9 + 8 ,  10 + 9 ) 

19 x 1   = 09 = (1 + 0)9  

19 x 2   = 18 = (2 + 1)8  

19 x 3   = 27 = (3 + 2 )7 

19 x 4   = 36 = (4 + 3)6  

19 x 5   = 45 = (5 + 4)5  

19 x 6   = 54 = (6 + 5)4    

19 x 7   = 63 = (7 + 6)3  

19 x 8   = 72 = (8 + 7)2  

19 x 9   = 81 = (9 + 8)1  

19 x 10 = 90 = (10 + 9)0

Now we got the table 19 

19 x 1   = 09 = (1 + 0)9   = 19

19 x 2   = 18 = (2 + 1)8   = 38

19 x 3   = 27 = (3 + 2 )7  = 57

19 x 4   = 36 = (4 + 3)6   = 76

19 x 5   = 45 = (5 + 4)5   = 95

19 x 6   = 54 = (6 + 5)4   = 114

19 x 7   = 63 = (7 + 6)3   = 133

19 x 8   = 72 = (8 + 7)2   = 152

19 x 9   = 81 = (9 + 8)1   = 171

19 x 10 = 90 = (10 + 9)0 = 190

_______________________________________________________________________________

Courtesy :

https://youtu.be/5Q3-pKMQpTU

 _______________________________________________________________________________