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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
explanation: The document is a PowerPoint presentation on multiplication techniques, specifically focusing on methods such as breaking numbers, doubling, and using multiples of 10. It includes several examples and exercises to illustrate these methods. The presentation does not contain a single question or a question and answer but rather a series of problems and solutions.
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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
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distilabel_metadata.raw_output_q_a_detector_0: The document is a PowerPoint presentation on multiplication techniques, specifically focusing on methods such as breaking numbers, doubling, and using multiples of 10. It includes several examples and exercises to illustrate these methods. The presentation does not contain a single question or a question and answer but rather a series of problems and solutions.
  
  Label: multiple-question-and-answer