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Do you remember the method of multiplication that we know?

Discover innovative multiplication methods in this engaging lesson! We explore the "Karate Chop" technique to break apart numbers in multiplication, focusing on both standard form and partial products. Learn how to simplify complex calculations, such as breaking apart 7 x 28 into manageable parts. Practice your skills with various exercises and compare your techniques with a partner. By the end of the lesson, you will be proficient in three multiplication methods and able to order your preferences. Join us for a fun and effective learning experience!

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Do you remember the method of multiplication that we know?

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  1. Do you remember the method of multiplication that we know? 1. Karate chop – breaking apart

  2. 7 x 28 (7 x 20) + (7 x 8) = _________ 140 56 196

  3. 324 x 6 (300 x 6) + (20 x 6) + (4 x 6) =_________ 120 1800 24 1,944

  4. Now we will learn standard form! 1. Karate chop – breaking apart 2. Standard Form

  5. 7 x 28 28x 7 5 56 14 + 5 196 6

  6. 324x 6 324x 6 1 2 24 12 + 2 1944 44 4 18 + 1

  7. Let’s practice Standard Form 186x 9 15x 6 3 79x 3 30 6 + 3 = 9 0 9

  8. Let’s practice Standard Form 79x 3 2 27 21 + 2 = 23 23 7

  9. Let’s practice Standard Form 186x 9 5 7 54 72 + 5 = 77 + 7 = 16 4 7 9 16

  10. We will learn a 3rd method today! 1. Karate chop – breaking apart 2. Standard Form 3. Partial Products

  11. 7 x 28 28x 7 56

  12. 7 x 28 (7 x 8) + (7 x 20) = _________ 28x 7 20 x 7= 140 56

  13. 7 x 28 28x 7 +____ 56 140 1 9 6

  14. 324x 6 324x 6 4 x 6 = 24 24 20 x 6 = 120 +______ 120 300 x 6 = 1800 1800 4 1 4 9

  15. Now you try one using partial products. Show your work!!! 5 x 73 OR 5 x 135 365 675

  16. Now you try one more using any method! 4 x 63 OR 8 x 217 252 1736

  17. Now we know 3! 1. Karate chop – breaking apart 2. Standard Form 3. Partial Products

  18. Order them from your favorite to least favorite. Tell your elbow partner your order. Are you the same? 1. Karate chop – breaking apart 2. Standard Form 3. Partial Products

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