Multiplying By 9

  • 2 days ago
Transcript
00:00Hi kids! Today we will learn the multiplication table of 9.
00:07What is 9 multiplied with 1? It is same as one set of 9 candies.
00:16So, it is 9 candies. That is, 9 multiplied by 1 is 9.
00:28What is 9 multiplied with 2? It is same as two sets of 9 candies.
00:36So, it is 18 candies. That is, 9 multiplied by 2 is 18.
00:46What is 9 multiplied with 3? It is same as three sets of 9 candies.
00:55So, it is 27 candies. That is, 9 multiplied by 3 is 27.
01:07What is 9 multiplied with 4? It is same as four sets of 9 candies.
01:16So, it is 36 candies. That is, 9 multiplied by 4 is 36.
01:26What is 9 multiplied with 5? It is same as five sets of 9 candies.
01:35So, it is 45 candies. That is, 9 multiplied by 5 is 45.
01:44Good! We have learned that multiplication is repeated addition.
01:51See the figure. Every time you add one more 9 to multiply 9 with a bigger number,
02:01so it becomes like steps. Adding one more 9, you get 18.
02:09Adding one more 9, you get 27. Adding one more 9, you get 36, and so on.
02:20So, it is a step counting by 9. So, let's revise what we learned.
02:289 x 1, 9. 9 x 2, 18.
02:379 x 3, 27. 9 x 4, 36.
02:469 x 5, 45. 9 x 6, 54.
02:549 x 7, 63. 9 x 8, 72.
03:039 x 9, 81. 9 x 10, 90.
03:12Good! Hey kids, here is a secret for you.
03:18You can write table of 9 very easily using a small trick.
03:24Have a look. What do you see here?
03:28You just need to write 0 to 9 downwards and 0 to 9 upwards.
03:38And table 9 is ready. Good!
03:42Now you may go ahead and take a quiz to learn more.
03:46Bye-bye!