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# Multiplication ppt

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### Multiplication ppt

1. 1. MULTIPLICATION BY: ABHA ARORA
2. 2. <ul><li>12 can be breaked as </li></ul><ul><li>(10 + 2 ) </li></ul>
3. 3. Multiplication by breaking numbers 4 x 7
4. 4. Break 7 as (5 + 2)
5. 5. 4 x 2 = 8 4 x 5 = 20
6. 6. <ul><li>4 x 7 = 4 x (5 + 2) </li></ul><ul><ul><ul><ul><li> = 4 x 5 + 4 x2 </li></ul></ul></ul></ul><ul><ul><ul><ul><li> = 20 + 8 </li></ul></ul></ul></ul><ul><ul><ul><ul><li> = 28 </li></ul></ul></ul></ul>
7. 7. Lets take one more example <ul><li> 12 x 2 </li></ul>
8. 8. 10 x 2 = 20 2x 4 = 4
9. 9. <ul><li>( 10 + 2 ) x 2 = 10 x 2 + 2x 2 </li></ul><ul><ul><ul><ul><ul><li> = 20 + 4 </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>= 24 </li></ul></ul></ul></ul></ul>
10. 10. Find the product by breaking up a factor <ul><li>37 x 8 = ? </li></ul><ul><li>37 = ( 30 + 7 ) </li></ul><ul><li>37 x 8 = (30 x 8) + (7 x 8) </li></ul><ul><li> = 240 + 56 </li></ul><ul><li> = 296 </li></ul>
11. 11. <ul><li>B) 235 x 3 = ? </li></ul><ul><li>235 = 200 + 30 + 5 </li></ul><ul><li>235 x 3 = (200 x 3) + (30 x 3) + (5 x 3) </li></ul><ul><li> = 600 + 90 + 15 </li></ul><ul><li> = 705 </li></ul>
12. 12. <ul><li>146 x 8 </li></ul><ul><li>146 = 100 + 40 + 6 </li></ul><ul><li>146 x 8 = ( 100x8 ) + ( 40x8 ) + ( 6x8 ) </li></ul><ul><li> = 800 + 320 +48 </li></ul><ul><li> = 1168 </li></ul>
13. 13. Multiplying by doubling <ul><li>If we know the 2 times table then we can work out the 4 times table by doubling. </li></ul><ul><li>Example </li></ul><ul><ul><ul><li>8 x 2 = 16 then 8 x 4 = 32 </li></ul></ul></ul><ul><ul><ul><li>Here 4 is the double of 2 and 32 is the double of 16 </li></ul></ul></ul>
14. 14. Similar examples : <ul><li>If 1 x 8 = 8 then 1 x 16 = 16 </li></ul><ul><li>2 x 8 = 16 then 2 x 16 = 32 </li></ul><ul><ul><li>3 x 8 = 24 then 3 x 16 = 48 </li></ul></ul>
15. 15. ACTION TIME : <ul><li>Double the 6 times table to find the product of : </li></ul><ul><li>A) 7 x 12 =? </li></ul><ul><li>We know 7 x 6 = 42 , so 7 x 12 = ?? </li></ul>
16. 16. <ul><li>B) 3 x 12 = ? </li></ul><ul><li>3 x 6 = 18 , so 3 x 12 = ? </li></ul>
17. 17. <ul><li>C) 8 x 12 = ? </li></ul><ul><li>8 x 6 = 48 , </li></ul><ul><li>so 8 x 12 = 96 </li></ul>
18. 18. Using multiples of 10 to multiply other numbers 8 x 19 = ? 8 x 20 =160 - 8 1 5 2
19. 19. <ul><li>6 x 39 = ? </li></ul>6 x 40 = 240 - 6 234
20. 20. Use multiples of 10 to find these products : <ul><li>A) 8 x 29 </li></ul><ul><li>30 is nearest tens to 29 , so we will find the </li></ul><ul><li>8 x 30 = 240 </li></ul><ul><li>- 8 </li></ul><ul><li> 232 </li></ul>
21. 21. <ul><li>B) 9 x 49 = ? </li></ul><ul><li>9 x 50 = 4 5 0 </li></ul><ul><li>- 9 </li></ul><ul><li>4 4 1 </li></ul>
22. 22. <ul><li>C) 4 x 69 = ? </li></ul><ul><li>4 x 70 = 2 8 0 </li></ul><ul><li> - 7 </li></ul><ul><li> 2 7 3 </li></ul>
23. 23. THANK YOU
The content of the provided text passage is a PowerPoint presentation on multiplication techniques, including breaking numbers, doubling, and using multiples of 10 to simplify multiplication problems. It includes examples and exercises for each method.
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the passage does not contain any direct mathematical questions that require an answer. instead, it provides examples and exercises that are meant to be solved by the reader, but no specific questions are asked within the text.
Given a text passage, determine:
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    2. If an answer to that mathematical question is provided in the text

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TYPE: <one of the following values>
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# Multiplication ppt

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### Multiplication ppt

1. 1. MULTIPLICATION BY: ABHA ARORA
2. 2. <ul><li>12 can be breaked as </li></ul><ul><li>(10 + 2 ) </li></ul>
3. 3. Multiplication by breaking numbers 4 x 7
4. 4. Break 7 as (5 + 2)
5. 5. 4 x 2 = 8 4 x 5 = 20
6. 6. <ul><li>4 x 7 = 4 x (5 + 2) </li></ul><ul><ul><ul><ul><li> = 4 x 5 + 4 x2 </li></ul></ul></ul></ul><ul><ul><ul><ul><li> = 20 + 8 </li></ul></ul></ul></ul><ul><ul><ul><ul><li> = 28 </li></ul></ul></ul></ul>
7. 7. Lets take one more example <ul><li> 12 x 2 </li></ul>
8. 8. 10 x 2 = 20 2x 4 = 4
9. 9. <ul><li>( 10 + 2 ) x 2 = 10 x 2 + 2x 2 </li></ul><ul><ul><ul><ul><ul><li> = 20 + 4 </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>= 24 </li></ul></ul></ul></ul></ul>
10. 10. Find the product by breaking up a factor <ul><li>37 x 8 = ? </li></ul><ul><li>37 = ( 30 + 7 ) </li></ul><ul><li>37 x 8 = (30 x 8) + (7 x 8) </li></ul><ul><li> = 240 + 56 </li></ul><ul><li> = 296 </li></ul>
11. 11. <ul><li>B) 235 x 3 = ? </li></ul><ul><li>235 = 200 + 30 + 5 </li></ul><ul><li>235 x 3 = (200 x 3) + (30 x 3) + (5 x 3) </li></ul><ul><li> = 600 + 90 + 15 </li></ul><ul><li> = 705 </li></ul>
12. 12. <ul><li>146 x 8 </li></ul><ul><li>146 = 100 + 40 + 6 </li></ul><ul><li>146 x 8 = ( 100x8 ) + ( 40x8 ) + ( 6x8 ) </li></ul><ul><li> = 800 + 320 +48 </li></ul><ul><li> = 1168 </li></ul>
13. 13. Multiplying by doubling <ul><li>If we know the 2 times table then we can work out the 4 times table by doubling. </li></ul><ul><li>Example </li></ul><ul><ul><ul><li>8 x 2 = 16 then 8 x 4 = 32 </li></ul></ul></ul><ul><ul><ul><li>Here 4 is the double of 2 and 32 is the double of 16 </li></ul></ul></ul>
14. 14. Similar examples : <ul><li>If 1 x 8 = 8 then 1 x 16 = 16 </li></ul><ul><li>2 x 8 = 16 then 2 x 16 = 32 </li></ul><ul><ul><li>3 x 8 = 24 then 3 x 16 = 48 </li></ul></ul>
15. 15. ACTION TIME : <ul><li>Double the 6 times table to find the product of : </li></ul><ul><li>A) 7 x 12 =? </li></ul><ul><li>We know 7 x 6 = 42 , so 7 x 12 = ?? </li></ul>
16. 16. <ul><li>B) 3 x 12 = ? </li></ul><ul><li>3 x 6 = 18 , so 3 x 12 = ? </li></ul>
17. 17. <ul><li>C) 8 x 12 = ? </li></ul><ul><li>8 x 6 = 48 , </li></ul><ul><li>so 8 x 12 = 96 </li></ul>
18. 18. Using multiples of 10 to multiply other numbers 8 x 19 = ? 8 x 20 =160 - 8 1 5 2
19. 19. <ul><li>6 x 39 = ? </li></ul>6 x 40 = 240 - 6 234
20. 20. Use multiples of 10 to find these products : <ul><li>A) 8 x 29 </li></ul><ul><li>30 is nearest tens to 29 , so we will find the </li></ul><ul><li>8 x 30 = 240 </li></ul><ul><li>- 8 </li></ul><ul><li> 232 </li></ul>
21. 21. <ul><li>B) 9 x 49 = ? </li></ul><ul><li>9 x 50 = 4 5 0 </li></ul><ul><li>- 9 </li></ul><ul><li>4 4 1 </li></ul>
22. 22. <ul><li>C) 4 x 69 = ? </li></ul><ul><li>4 x 70 = 2 8 0 </li></ul><ul><li> - 7 </li></ul><ul><li> 2 7 3 </li></ul>
23. 23. THANK YOU
user
The content of the provided text passage is a PowerPoint presentation on multiplication techniques, including breaking numbers, doubling, and using multiples of 10 to simplify multiplication problems. It includes examples and exercises for each method.

TYPE: NO_QUESTION

The passage does not contain any direct mathematical questions that require an answer. Instead, it provides examples and exercises that are meant to be solved by the reader, but no specific questions are asked within the text.