Question
By how much should 84.5 be decreased to get 27.84?

Answer

In order to get the required number, we should subtract 27.84 from 84.5
Required number = 84.5 - 27.84
= 84.50 - 27.84
= 56.66
Working:
$\ \ \ \ {84.50}\\\ \underline{-27.84}\\\ \underline{\ \ \ 56.66}$

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