The document discusses the pros and cons of long multiplication and provides examples of how to perform long multiplication problems step-by-step. It notes that the pros of long multiplication are that it is often faster than partial products and is more easily understood, while the cons are that some students have difficulty mastering it and it is not always clear why the method works. The document then demonstrates long multiplication through worked examples such as 252 x 1,315 and 182 x 5,460.

1. Long Multiplication By Mr. Kish

2. Pros and Cons Pros Likely faster than partial products Works everytime Better understood by most people (e.g. parents) Cons It isn’t clear why it works Some steps can be forgotten Some students have a hard time mastering

3. An example of long multiplication x 6 3 5 4

4. An example of long multiplication x Make an estimate 6 3 5 4

5. An example of long multiplication x Make an estimate 60 * 50 6 3 5 4

6. An example of long multiplication x Make an estimate 60 * 50 = 3,000 6 3 5 4

7. An example of long multiplication x 6 3 5 4

8. An example of long multiplication x 2 6 3 5 4

9. An example of long multiplication x 2 1 6 3 5 4

10. An example of long multiplication x 252 1 6 3 5 4

11. An example of long multiplication x 252 1 0 6 3 5 4

12. An example of long multiplication x 252 1 50 1 6 3 5 4

13. An example of long multiplication x 252 1 3150 1 6 3 5 4

14. An example of long multiplication 252 x 1 3150 1 + 6 3 5 4

15. An example of long multiplication 252 x 1 3150 1 + 3042 6 3 5 4

16. An example of long multiplication x Make an estimate 9 1 6 2

17. An example of long multiplication x Make an estimate 90 * 60 9 1 6 2

18. An example of long multiplication x Make an estimate 90 * 60 = 5,400 9 1 6 2

19. An example of long multiplication x 2 9 1 6 2

20. An example of long multiplication x 182 9 1 6 2

21. An example of long multiplication x 182 0 9 1 6 2

22. An example of long multiplication x 182 60 9 1 6 2

23. An example of long multiplication x 182 5460 9 1 6 2

24. An example of long multiplication 182 x 5460 + 9 1 6 2

25. An example of long multiplication 5642 182 x 5460 + 9 1 6 2

26. A more complex example 6 2 4 x 3 3 1

27. A more complex example 6 2 4 x 621 3 3 1 18720 187200 + 206,544