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Open Area Model of Multiplication

Open Area Model of Multiplication. Reasons for use:. 1. Considers both dimensions of the array model 2. Increases algebraic thinking 3. Increases understanding of place value . Procedure: Let’s look at the problem 56 x 32 = ?. First: you draw a rectangular box. . 50. 6.

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Open Area Model of Multiplication

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  1. Open Area Model of Multiplication

  2. Reasons for use: • 1. Considers both dimensions of the array model • 2. Increases algebraic thinking • 3. Increases understanding of place value

  3. Procedure: Let’s look at the problem 56 x 32 = ? • First: you draw a rectangular box.

  4. 50 6 • Second you break down the number 56 to 50 + 6. And place the new number atop the rectangle Make sure you draw a line down where the two numbers meet. Make sure the line is representative of where they should be on the number line. It does not have to be exact.

  5. 50 6 • Third: You perform the same method to the next number, except you place it on the side. 30 2

  6. 50 6 • Fourth: Then you multiply: • 50 x 30 • 30 x 6 • 50 x 2 • 6 x 2 30 1,500 180 2 100 12

  7. Fifth: You add up your products. Viola, you have your answer. • 1,500 • 180 • 100 • + 12 • 1,792

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