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Do you remember the 2 methods of multiplication that we know?

Do you remember the 2 methods of multiplication that we know?. 1. Karate chop – breaking apart . 7 x 28. (7 x 20) + (7 x 8) = _________. 140. 56. 196. Do you remember the 2 methods of multiplication that we know?. 1. Karate chop – breaking apart .

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Do you remember the 2 methods of multiplication that we know?

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  1. Do you remember the 2 methods of multiplication that we know? 1. Karate chop – breaking apart

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

  3. Do you remember the 2 methods of multiplication that we know? 1. Karate chop – breaking apart 2. Standard Form

  4. 7 x 28 28x 7 5 56 14 + 5 196 6

  5. We will learn a 3rdmethod today! 1. Karate chop – breaking apart 2. Compatible numbers 3. Partial Products

  6. 7 x 28 28x 7

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

  8. 7 x 28 28x 7 +____ 56 140 1 9 6

  9. We will learn a 4thmethod today! 1. Karate chop – breaking apart 2. Standard Form • 3. Partial Products 4. Lattice Method

  10. 7 x 28 2 8 1 5 7 1 4 6 9 6 196

  11. 27 x 28 2 8 0 1 2 4 6

  12. 27 x 28 2 8 1 0 1 2 0 4 6 1 5 7 7 4 6 6 5 756

  13. 28 X 127 2 8 1 With a three digit number, your lattice can be set up this way, 2 7

  14. 127 x 28 1 2 7 2 or this way. The commutative property allows you to multiply either way. 8

  15. Now you try one using lattice. Show your work!!! 3 x 321 OR 26 x 134 963 3484

  16. Now you try one more using any method! 5 x 496 OR 458 x 217 2480 99386

  17. Now we know 5! Turn to your partner. Which is your favorite and why? 1. Karate chop – breaking apart 2. Compatible numbers 3. Standard Form • 4. Partial Products 5. Lattice Method

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