1 / 32

LATTICE MULTIPLICATION

LATTICE MULTIPLICATION. Tutorial 4. At the end of Tutorial 3 I gave you a problem to work on independently. Watch as I use LATTICE MULTIPLICATION to solve that problem. Tutorial 3’s On Your Own Problem:. 93 x 5 =. First, write the larger number down. 9 3.

maille
Download Presentation

LATTICE MULTIPLICATION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LATTICE MULTIPLICATION Tutorial 4

  2. At the end of Tutorial 3 I gave you a problem to work on independently. Watch as I use LATTICE MULTIPLICATION to solve that problem.

  3. Tutorial 3’sOn Your Own Problem: 93 x 5 =

  4. First, write the larger number down.

  5. 93

  6. Draw a rectangle below this number.

  7. 93

  8. The larger number is made up of 2 digits, so cut the rectangle into two boxes.

  9. 93

  10. Write the other problem number on the right of the rectangle.

  11. 93 5

  12. Cut the boxes diagonally. For each box draw a line from the bottom left to the top right.

  13. 93 5

  14. Now we do basic multiplication. Start with the 9. If we go down from the 9 and across from the 5 they “meet” in that first box.

  15. 93 5

  16. 9 x 5 = 4 5Write 4 in the top half of the box and write 5 in the bottom half of the box.

  17. 93 4 5 5

  18. Move on to the 3. If we go down from the 3 and across from the 5 they “meet” in that second box.

  19. 93 4 5 5

  20. 3 x 5 = 1 5 Write 1 in the top half of the box and write 5 in the bottom half of the box.

  21. 93 4 1 5 5 5

  22. Extend your diagonal lines down.

  23. 9 3 4 1 5 5 5

  24. Add the numbers inside the boxes. Use the diagonal lines to guide you. Start on the right with the 5 then move to the left. 5 + nothing = 5. So put a 5 on the right of the diagonal lines.

  25. 93 4 1 5 5 5 5

  26. 1 + 5 = 6. So put a 6 between the diagonal lines.

  27. 93 4 1 5 5 5 5 6

  28. 4 + nothing = 4. So put a 4 to the left of the diagonal lines.

  29. 93 4 1 5 5 5 4 5 6

  30. That’s it!465 is your answer.93 x 5 = 4 65

  31. ON YOUR OWN Try the following problem using the rules from today’s work. The answer will be the first thing given in TUTORIAL 5.

  32. On Your Own Problem: 82 x 4 =

More Related