Short tricks to learn table of 5 and tables from 12 to 19

Table of 5

Table of 12

Table of 13

Table of 14
https://youtu.be/XZi5t20E9ik

Table of 15
https://youtu.be/HMNJC03BNy4

Table of 16
https://youtu.be/RGYdM0vKf3I

Table of 17

Table of 18
https://youtu.be/I6s-hCoEmdQ

Table of 19
https://youtu.be/xSu7ap2EAME