1 / 29

MULTIPLICATION LESSON #5

MULTIPLICATION LESSON #5. Multiplying by 5. VOCABULARY. The prefix “ penta ” means five of something. Examples : pentagon -- 5 sided polygon pentathlon -- a sporting event composed of 5 separate events pentagram -- 5 pointed star. HOW TO MULTIPLY BY FIVE (5).

herve
Download Presentation

MULTIPLICATION LESSON #5

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. MULTIPLICATION LESSON #5 Multiplying by 5

  2. VOCABULARY • The prefix “penta” means five of something. • Examples: pentagon-- 5 sided polygon pentathlon -- a sporting event composed of 5 separate events pentagram -- 5 pointed star

  3. HOW TO MULTIPLY BY FIVE (5) • Rule: When you multiply by five, there will either be a 0 or a 5 in the ones place. Example: 2 x 5 = 10; 3 x 5 = 15;4 x 5 = 20;5 x 5 = 25 • Groups: There are 5 groups. Example: 5 x 5 = 25; There are 5 groups of 5

  4. HOW TO MULTIPLY BY FIVE (5) • Addition: Add the number 5 times. Example a: 5 x 3 = 15 3+3+3+3+3=15 (add 3 five times) 5+5+5=15 (add 5 three times) Example b: 5 x 4 = 20 4+4+4+4+4=20 (add 4 five times) 5+5+5+5=20 (add 5 four times)

  5. HOW TO MULTIPLY BY FIVE (5) • Number patterns: Count by fives. Example: 5 x 9 = 45 or 5, 10, 15, 20, 25, 30, 35, 40, 45 6 x 5 = 30 or 5, 10, 15, 20, 25, 30 5 x 12 = 60 or 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 • Arrays: 5 rows of 3 is 15 3 rows of 5 is 15 5 x 3 = 15 3 x 5 = 15

  6. HOW TO MULTIPLY BY FIVE (5)word Problem • A cupcake factory produced 4 packages of cupcakes. There were 5 cupcakes in each package. How many cupcakes did the factory produce in all? Use pictures, numbers and words to solve the problem. 20 5 5 5 5 5 cupcakes x 4 packages = 20 cupcakes 5, 10, 15, 20 4, 8, 12, 16, 20 The factory produced 20 cupcakes in all. I solved this problem by adding 5 + 5 + 5 + 5 = 20 cupcakes or 5 cupcakes x 4 packages = 20 cupcakes in all.

  7. HOW TO MULTIPLY BY FIVE (5)word Problem • Now it’s your turn... • Ganeev, Jennifer and Gurjot were having a bake sale. Each one of them baked five cookies, how many cookies did they have altogether? 20 5 5 5 5 cookies x 3 students = 15 cookies 5, 10, 15, 3, 6, 9, 12, 15 The kids baked 15 cookies altogether. I solved this problem by adding 5 + 5 + 5 = 15 cookies or 5 cookies x 3 students = 15 cookies in all.

  8. HOW TO MULTIPLY BY FIVE (5) HELPFUL LINKS • YouTube Songs • http://www.youtube.com/watch?v=wkfWBH9i33E • http://www.youtube.com/watch?v=MaiIZU2BIwg&feature=fvwrel • School House Rock: Counting By Fives • http://www.youtube.com/watch?v=NUHFzH06HqU

  9. HOW TO MULTIPLY BY FIVE (5) HELPFUL LINKS • Online Multiplication Game: Flying High • http://www.multiplication.com/games/play/flying-high

  10. 5x0 0

  11. 5x1 5

  12. 5x2 10

  13. 5x3 15

  14. 5x4 20

  15. 5x5 25

  16. 5x6 30

  17. 5x7 35

  18. 5x8 40

  19. 5x9 45

  20. 5x0 0

  21. 5x1 5

  22. 5x2 10

  23. 5x6 30

  24. 5x9 45

  25. 5x4 20

  26. 5x5 25

  27. 5x3 15

  28. 5x7 35

  29. 5x8 40

More Related