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Multiplying 3-Digit by 1-Digit Numbers Using an Area Model
Author:
Tim Brzezinski
Topic:
Area
,
Mathematics
,
Multiplication
,
Numbers
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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