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Lesson 48: Multiplying 2-Digit by 1-Digit

Lesson 48: Multiplying 2-Digit by 1-Digit. Ms. Jamie Scordino 3 rd Grade Math. Example: 12 x 4. Start by putting the larger number on top. 1 2 x 4 1 2 x 4 8 1 2 x 4 4 8. Then multiply the ones place by the ones place.

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Lesson 48: Multiplying 2-Digit by 1-Digit

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  1. Lesson 48: Multiplying 2-Digit by 1-Digit Ms. Jamie Scordino 3rd Grade Math

  2. Example: 12 x 4 Start by putting the larger number on top. 1 2 x 4 1 2 x 4 8 12 x 4 48 Then multiply the ones place by the ones place. Then multiply the ones place by the tens place.

  3. Example: 23 x 3 Start by putting the larger number on top. 2 3 x 3 2 3 x 3 9 23 x 3 69 Then multiply the ones place by the ones place. Then multiply the ones place by the tens place.

  4. Your Turn

  5. Example: 31 x 2 Start by putting the larger number on top. Then multiply the ones place by the ones place. Then multiply the ones place by the tens place.

  6. Example with Carrying: 25 x 3 Start by putting the larger number on top. 2 5 x 3 2 5 x 3 5 25 x 3 75 1 Then multiply the ones place by the ones place. Carry like in addition. 1 Then multiply the ones place by the tens place. Then add like in addition.

  7. Example with Carrying: 42 x 6 Start by putting the larger number on top. 4 2 x 6 4 2 x 6 2 42 x 6 252 1 Then multiply the ones place by the ones place. Carry like in addition. 1 Then multiply the ones place by the tens place. Then add like in addition.

  8. Your Turn

  9. Example with Carrying: 37 x 8 Start by putting the larger number on top. Then multiply the ones place by the ones place. Carry like in addition. Then multiply the ones place by the tens place. Then add like in addition.

  10. Your Turn Thank you for a great lesson!

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