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Multiplying 4-Digit by 4-Digit Numbers Using an Area Model

Auteur :Tim Brzezinski

To evaluate 7723 x 4472, note how (in the pic) we decomposed 7723 as "7000 + 700 + 20 + 3" in the top row. Then we decomposed 4472 as "4000 + 400 + 70 + 2" on the left side. We then filled in the areas and then added these areas to get the final product!

To evaluate 7723 x 4472, note how (in the pic) we decomposed 7723 as "7000 + 700 + 20 + 3" in the top row. Then we decomposed 4472 as "4000 + 400 + 70 + 2" on the left side. We then filled in the areas and then added these areas to get the final product!

Decompose the first 4-digit number into thousands, hundreds, tens, and ones in the top row. Then decompose the second 4-digit number into hundreds, tens, and ones on the left side. Then find the areas of each rectangle and add them up to get the final p

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