Akash asked Pavan to find the value of 9999 x 555. He says that it will be difficult to multiply as both of them are big numbers. Akash says that there is a simple way to find the product. He solves the problem using the concept of brackets. Which of the following will be the easiest way to solve this?

9999*(555) = 9999*(500+5)

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9999*(555) = (9000+999)*(500+5)

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9999*(555) = (1000-1)*(500+5)

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9999*(555) = (1000-1)*(555)

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Solution

The correct option is D
9999(555) = (1000-1)(555)

As 9999 is nothing but (10000 - 1) and it's very easy to multiply any number by a multiple of 10.
$∴$ Easiest way will be to solve 9999 x 555 as (10000 - 1) x (555).

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The correct option is D 9999*(555) = (1000-1)*(555) As 9999 is nothing but (10000 - 1) and it's very easy to multiply any number by a multiple of 10. ∴ Easiest way will be to solve 9999 x 555 as (10000 - 1) x (555).

The correct option is D
9999(555) = (1000-1)(555)

As 9999 is nothing but (10000 - 1) and it's very easy to multiply any number by a multiple of 10.
$∴$ Easiest way will be to solve 9999 x 555 as (10000 - 1) x (555).