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 = 03 = (1 + 0)3
13 x 2 = 06 = (2 + 0)6
13 x 3 = 09 = (3 + 0)9
13 x 4 = 12 = (4 + 1)2
13 x 5 = 15 = (5 + 1)5
13 x 6 = 18 = (6 + 1)8
13 x 7 = 21 = (7 + 2 )1
13 x 8 = 24 = (8 + 2)4
13 x 9 = 27 = (9 + 2)7
13 x 10 = 30 = (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
_______________________________________________________________________________