Question

Find the sum: $0.007+8.5+30.08$.

Answer 1

Calculate the sum of the given expression:

Given expression: $0.007+8.5+30.08$.

$\begin{array}{rcl}0.007+8.5+30.08& =& \frac{1}{1000}\left[\because \left(0.007\times 1000\right)+\left(8.5\times 1000\right)+\left(30.08\times 1000\right)\right]\\ & \Rightarrow & 0.007+8.5+30.08=\frac{1}{1000}\left(7+8500+30080\right)\\ & \Rightarrow & 0.007+8.5+30.08=\frac{1}{1000}\left(38587\right)\\ & \Rightarrow & 0.007+8.5+30.08=38.587\end{array}$

Hence, the sum of the given expression is $38.587$.