Directions (Set of 5 questions): What approximate value should come in place of the question marks(?) in the following questions? (Note : you are not expected to calculate the exact value.)
$\sqrt{7400}+~\left( 1101.81\times 18.19 \right)=~?~+(2896~\div 41~\times 9)$
Solution
$\sqrt{7400}+~\left( 1101.81\times 18.19 \right)=~?~+\left( 2896~\div 41~\times 9 \right)$
$?~\approx 86+1102~\times 18-\left( 2896~\div 41~\times 9 \right)$
$?=19922-71~\times 9$
$?=19922-639$
$? = 19283$