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Which of the following numbers must be subtracted from 84.5 to get 27.84?

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56.64

56.66

52.66

55.66

answer is A.

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Detailed Solution

Given that, a number is subtracted from 84.5 to get 27.84.
Let us consider the required number as

x

,
Then,

84.5 - x = 27.84

x = 84.5 - 27.84

Write the numbers in the place value table and subtract,

	Tens	Ones	Tenths	Hundredths
	8	4	5	0
$-$	2	7	8	4
=	5	6	6	6

Now, write the number in decimal form

x = 56.66

Hence, to get 27.84 we should subtract 56.66.
Therefore, option 1 is correct.

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