Find the product by rearrangement:$20\ \times\ 1975\ \times 5$

Given: $20\ \times\ 1975\ \times 5$

To find: Here we have to find the value of the given expression $20\ \times\ 1975\ \times 5$ by rearranging.

Solution:

Rearrangement is done to make calculations easy.

In this case it is difficult to calculate the product of 20 and 1975 and then again multiply that value with 5 to get the final answer.

$20\ \times\ 1975\ \times 5$

Now, we know that product of 20 and 5 is easy to calculate. So, rearranging the digits:

$=\ 1975\ \times\ (20\ \times\  5)$

$=\ 1975\ \times \ 100$

It is easier to calculate the final value now:

$=\ \mathbf{197500}$

So, the value of the given expression is 197500.

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Updated on: 10-Oct-2022

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