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Solve 821 × 54 using an area model

User Maurits
by
8.5k points

2 Answers

3 votes
821x54x
44334x esta es la respuesta
User Michael Miner
by
8.2k points
7 votes

Answer:

44334

Explanation:

The given expression is


821* 54

We need to find the product of 821 and 54 using area model.

Write each number as the sum of place values.


821=800+20+1


54=50+4

So, the given expression can be written as


(800+20+1)(50+4)


800(50+4)+20(50+4)+1(50+4)


800(50)+800(4)+20(50)+20(4)+50+4


40000+3200+1000+80+50+4


44334

Therefore, the value of given expression is 44334.

Solve 821 × 54 using an area model-example-1
User Jimoleary
by
7.6k points

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