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Question

Estimate: 5,873436.


A

5900

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B

6000

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C

5600

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D

5500

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Solution

We have to estimate 5,873436.

 Round off 5873 is 6000 [Since, highest place of 5893 is thousands place]

 Round off 436 is  400 [Since, highest place of 436 is hundreds place].

Now, the estimated value of 5,873436 is

6000400

=5600

So the estimated difference is 5600. ---(1)

(OR)

In given numbers 5,873 and 436, highest common place is hundreds place.

So, both numbers rounded to nearest to 100.

The round off 5873 nearest to hundreds is 5900.  [Since, 873 is nearest to 900.]

The round off 436 nearest to hundreds is 400. [Since, 436 is nearest to 400.]

Now, the estimate value of 5,873436

=5900400

=5500

So the estimated difference is 5500.---(2)

Actual difference is 5,873436=5437

In 5600 and 5500,

Clearly, 5437 is closest to 5500.

Hence, Option D. 5500 is correct.


Mathematics

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