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Bài 10: Multiplications word problems
(Những vấn đề của phép nhân)
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Bài 10: Multiplications word problems
Starry, I promised my 6 friends that I would given them chocolates today.Starry, I promised my 6 friends that I would given them chocolates today.
If I have to give each friend 2 chocolates than how many chocolates should I have with me?If I have to give each friend 2 chocolates than how many chocolates should I have with me?
Oh, what are you getting Starry?Oh, what are you getting Starry?
Oh, you are adding two chocolates six times.Oh, you are adding two chocolates six times.
So we get 2 + 2 + 2 + 2 + 2 + 2 is equal to 12.So we get 2 + 2 + 2 + 2 + 2 + 2 is equal to 12.
Starry, we can multiply 2 and 6 and get the answer.Starry, we can multiply 2 and 6 and get the answer.
See 2 x 6 = 12. So, I will have to take 12 chocolates with me.See 2 x 6 = 12. So, I will have to take 12 chocolates with me.
Starry, just like addition and subtraction.Starry, just like addition and subtraction.
While solving multiplication problems we have to find what is given and then what is to be found out?While solving multiplication problems we have to find what is given and then what is to be found out?
Then solve the problems. Now, let us read this problem.Then solve the problems. Now, let us read this problem.
8 friends were travelling by bus. They had to pay rupees 4 for each ticket.8 friends were travelling by bus. They had to pay rupees 4 for each ticket.
How much money they had to pay for all the tickets?How much money they had to pay for all the tickets?
What has been given in this problem Starry?What has been given in this problem Starry?
Yes, it given that the cost of one tickets is rupees 4.Yes, it given that the cost of one tickets is rupees 4.
The total number of tickets is 8. We have to find the total amount of money.The total number of tickets is 8. We have to find the total amount of money.
So we should multiply 4 by 8. How much is 4 x 8 Starry?So we should multiply 4 by 8. How much is 4 x 8 Starry?
Yes, 32. So, they need 32 rupees in all to buy 8 tickets.Yes, 32. So, they need 32 rupees in all to buy 8 tickets.
Let solve the next one.Let solve the next one.
There were 6 pencils in a box. Ali purchased 5 such boxes.There were 6 pencils in a box. Ali purchased 5 such boxes.
How many pencils does he have in all?How many pencils does he have in all?
It given that Ali purchased 5 boxes of pencils, each box has 6 pencils.It given that Ali purchased 5 boxes of pencils, each box has 6 pencils.
What do we have to find out? We have to find the total number of pencils with Ali.What do we have to find out? We have to find the total number of pencils with Ali.
Can you solve this problem Starry?Can you solve this problem Starry?
Yes, it’s simple. We have to multiply 5 by 6, so find they are 30.Yes, it’s simple. We have to multiply 5 by 6, so find they are 30.
Thus, Ali purchased 30 pencils in all.Thus, Ali purchased 30 pencils in all.
Should we solve the next example Starry?Should we solve the next example Starry?
Ok, then let read it. One rabbit has 2 ears, How many ears do 10 rabbits have?Ok, then let read it. One rabbit has 2 ears, How many ears do 10 rabbits have?
What should we do Starry?What should we do Starry?
Yes, multiply 2 by 10, 2 10 are 20. So, ten rabbits have 20 ears all together.Yes, multiply 2 by 10, 2 10 are 20. So, ten rabbits have 20 ears all together.
Let us solve the last example.Let us solve the last example.
Sarita reads 3 pages of a story book everyday.Sarita reads 3 pages of a story book everyday.
How many pages can she read in 7 days?How many pages can she read in 7 days?
In one day Sarita read 3 pages. So, in 7 days Sarita can read 3 multiply by 7 pages.In one day Sarita read 3 pages. So, in 7 days Sarita can read 3 multiply by 7 pages.
Do you know what the answer it Starry?Do you know what the answer it Starry?
Yes, 3 7 are 21. So, Sarita can read 21 pages in 7 days.Yes, 3 7 are 21. So, Sarita can read 21 pages in 7 days.
Starry, sloving multiplications word problems also have observe day to day life.Starry, sloving multiplications word problems also have observe day to day life.
