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GeoGebra Classroom

Multiplying 3-Digit by 1-Digit Numbers Using an Area Model

作成者:Tim Brzezinski

トピック:面積, 数学, 掛け算, 数

To evaluate 261 x 3, note how (in the pic) we decomposed 261 into "200 + 60 + 1", and then filled in the areas and then added these areas.

To evaluate 261 x 3, note how (in the pic) we decomposed 261 into "200 + 60 + 1", and then filled in the areas and then added these areas.

Decompose the 3-digit number being multiplied into hundreds, tens, and ones. Then find the area of each rectangle and add them!

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