Multiplication With Multiples Of 10

  • 3 months ago
Transcript
00:00Hi kids! We now know when to use multiplication. Now we will learn how to multiply any number
00:10with multiples of 10, like 10, 20, 30, 70, 100, etc. So let's get started.
00:24We have to multiply 2 with 10. What we do here is, we know anything multiplied with
00:321 is the same number. So, 2 multiplied by 1 equals 2. Now, put the same number of zeros
00:43after 2, as are in the number you are multiplying it with. And as there is only one 0 in 10,
00:54so put one 0 after 2. 20 is our answer. Now, what is 2 multiplied by 100? We know 2 multiplied
01:09by 1 equals 2. Now, put the same number of zeros, as are in the number we are multiplying
01:17with, that is 100, as there are two 0s. So put two 0s after 2, and you get the answer.
01:28200 is our answer. Now, what is 3 multiplied by 1000? Again, 3 multiplied by 1 equals 3.
01:44And we have three 0s in 1000. So, put three 0s after 3, and you get the answer. It's 3000.
01:57Now, what is 4 multiplied by 2000? Here, we write it as 4 multiplied by 2 multiplied by 1000.
02:124 multiplied by 2 equals 8. And we have three 0s in 1000. So, put three 0s after 8,
02:25and you get the answer. 8000. So, let's take another example. Now, what is 6 multiplied by
02:371000? Here, 6 multiplied by 1 equals 6. And we have three 0s in 1000. So, put three 0s
02:49after 6, and you get the answer. 6000. Let's take another example. Now, what is 5 multiplied by
03:032000? Here, we can write it as 5 multiplied by 2 equals 10. And we have three 0s in 1000.
03:17So, put three 0s after 10, and you get the answer. 10,000. Let's have a look at examples.
03:2812 multiplied by 100 equals 1200. 3 multiplied by 100 equals 300.
03:435 multiplied by 1000 equals 5000. 6 multiplied by 200 equals 6.
03:546 multiplied by 2 multiplied by 100 equals 1200. 4 multiplied by 500 equals 2000.
04:097 multiplied by 3000 equals 21,000. So, kids, we learned multiplying a number
04:22with a multiple of 10 is very easy. Now, you may go ahead and take a quiz to learn more. Bye-bye.