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# Partial Products Slidecast

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### Partial Products Slidecast

1. 1. Partial Products Multiplication By Mr. Kish
2. 2. Pros and Cons <ul><li>Pros </li></ul><ul><li>Reinforces the understanding of place value </li></ul><ul><li>Closely related to how a problem would be solved mentally </li></ul><ul><li>More “logical” </li></ul><ul><li>Cons </li></ul><ul><li>Sometimes hard to remember order of steps </li></ul><ul><li>More lines of work </li></ul><ul><li>Seems to take longer </li></ul><ul><li>Not as widely used </li></ul>
3. 3. An example of partial products 6 3 5 4 x
4. 4. An example of partial products x Make an estimate 6 3 5 4
5. 5. An example of partial products x Make an estimate 60 * 50 6 3 5 4
6. 6. An example of partial products x Make an estimate 60 * 50 = 3,000 6 3 5 4
7. 7. An example of partial products x 6 3 5 4
8. 8. An example of partial products 6 3 5 4 x 0 0 6 3 5 4
9. 9. An example of partial products x 0 0 6 3 5 4
10. 10. An example of partial products x 0 3000 60 * 50 6 3 5 4
11. 11. An example of partial products x 0 0 3000 240 60 * 4 6 3 5 4
12. 12. An example of partial products x 0 0 3000 240 150 3 * 50 6 3 5 4
13. 13. An example of partial products x 0 0 3000 240 150 12 3 * 4 6 3 5 4
14. 14. An example of partial products 3000 x 0 0 240 150 12 + 6 3 5 4
15. 15. An example of partial products 3000 x 0 0 240 150 12 + 3402 6 3 5 4
16. 16. An example of partial products 9 1 6 2 x
17. 17. An example of partial products x Make an estimate 9 1 6 2
18. 18. An example of partial products x Make an estimate 90 * 60 9 1 6 2
19. 19. An example of partial products x Make an estimate 90 * 60 = 5,400 9 1 6 2
20. 20. An example of partial products x 9 1 6 2
21. 21. An example of partial products x 0 0 9 1 6 2
22. 22. An example of partial products x 0 0 9 1 6 2
23. 23. An example of partial products x 0 0 5400 90 * 60 9 1 6 2
24. 24. An example of partial products x 0 0 5400 180 90 * 2 9 1 6 2
25. 25. An example of partial products x 0 0 5400 180 60 1 * 60 9 1 6 2
26. 26. An example of partial products x 0 0 5400 180 60 2 1 * 2 9 1 6 2
27. 27. An example of partial products x 0 0 5400 180 60 2 + 9 1 6 2
28. 28. An example of partial products x 0 0 5400 180 60 2 + 5642 9 1 6 2
29. 29. A more complex example 6 4 2 x 3 5 1
30. 30. A more complex example 6 4 2 x 1 8 0 0 0 0 3 0 0 0 0 1 2 0 0 0 6 0 0 600 * 300 600 * 50 600 * 1 40 * 300 2 2 5 3 4 2 3 5 1 2 0 0 0 4 0 1 0 0 6 0 0 40 * 50 40 * 1 2 * 300 2 * 50 2 2 * 1
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