Multiplying Doubles With Doubles

GenX-Education

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00:00hi kids now we know what's multiplication and multiplying a single

00:07digit or double digit number with a single digit number today we will learn

00:14multiplying a double digit or a bigger number with a double digit number so

00:21let's get started we will multiply 34 multiplied by 21 remember order of

00:32numbers does not change the product that is 34 multiplied by 21 equals 21

00:43multiplied by 34 in any sum addition subtraction or multiplication we first

00:53align the numbers now first multiply 21 with the one digit of 34 4 multiplied by

01:031 equals 4 right 4 in the product at once please 4 multiplied by 2 equals 8

01:15right 8 in the product at tens please now put a multiplication sign below the

01:25ones place digit of quota now multiplying 21 with tens digit that is

01:333 3 multiplied by 1 equals 3 right 3 in product at hands please 3 multiplied by

01:452 equals 6 right 6 in product at hundreds please now we have multiplied

01:5321 with both the digits of 34 now add the products 4 plus 0 equals 4 8 plus

02:063 equals 11 carry over 1 to next place 6 plus 1 carry equals 7 714 is our

02:20product of 21 and 34 this is called column method of multiplication we will

02:32see many examples of our practice so let's see another example there are 421

02:40houses in the town and there are 34 windows in each house how many windows

02:48are there in total in the town we will multiply 421 multiplied by 34 remember

03:00order of numbers does not change the product that is 421 multiplied by 34

03:09equals 34 multiplied by 421 in any sum addition subtraction or multiplication

03:21we first align the numbers now first multiply 461 with the ones digit of 34

03:334 multiplied by 1 equals 4 right 4 in product at once please 4 multiplied by

03:452 equals 8 right 8 in product at tens please 4 multiplied by 4 equals 16 right

03:5716 in the product now put a multiplication sign below the ones place

04:05digit of product now multiply 421 with tens digit that is 3 3 multiplied by 1

04:17equals 3 right 3 in product starting at tens please 3 multiplied by 2 equals 6

04:29right 6 in product at hundreds please 3 multiplied by 4 equals 12 right 12 in the

04:41product at next please now we have multiplied 421 with both the digits of

04:4934 now add the product 4 plus 0 equals 4 8 plus 3 equals 11 carry over 1 to next

05:05place 6 plus 6 plus 1 carry equals 13 right 3 in the sum and carry over 1 to

05:16next place 1 plus 1 plus 2 equals 4 right 4 in the sum nothing to add in 1

05:30right 1 in the sum 14,314 is our product of 421 multiplied by 34 this is called

05:45column method of multiplication so let's see another example there are 550 boxes

05:56and 78 balls are there in each box how many balls are there in total 550 multiplied by 78

06:09first of all align the numbers now multiply 550 with one digit of 78 that is 8 8 multiplied by

06:230 equals 0 anything multiplied with 0 is 0 8 multiplied by 5 equals 40 right 0 in the product

06:38and carry over 4 as we always carry over tens please and keep the ones place in sum or product

06:47now put a multiplication sign below the ones place digit of the product now multiply 550

06:58with tens digit of 78 that is 7 7 multiplied by 0 equals 0 right 0 in the product starting

07:14from tens place 7 multiplied by 5 equals 35 so right ones place that is 5 in the product

07:25and carry over 3 to the next place that is hundreds place 7 multiplied by 5 equals 35

07:3635 plus 3 equals 38 now right 38 in the product now add the both products 0 plus 0 equals 0 0

07:52plus 0 equals 0 4 plus 5 equals 9 4 plus 8 equals 12 right 2 in the sum and carry over

08:081 to next place 3 plus 1 carry equals 4 42,900 is a product of 550 and 78 so kids we learn the

08:26column method of multiplication to multiply number with two digit number where we first

08:34multiply with the ones digit then with the tens digit and then added both the products to get

08:43the answer kids you need to do a lot of practice to be good at multiplication now you may go ahead

08:51and take a quiz to learn more bye-bye

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