Question

Evaluate each of the following, and write the answer to the appropriate number of significant figures.

$52.331+26.01-0.9981$

Answer 1

Evaluate the expression:

To find, $52.331+26.01-0.9981$.

First add the two number then subtract third number from the obtained answer.

Use the vertical method to evaluate.

$+\begin{array}{ccccc}5& 2.& 3& 3& 1\end{array}\begin{array}{ccccc}2& 6.& 0& 1& \end{array}\begin{array}{ccccc}7& 8.& 3& 4& 1\end{array}$

Now subtract $0.9981$ from above answer.

$\begin{array}{cccccc}7& 8.& 3& 4& 1& 0\end{array}-\begin{array}{cccccc}& 0.& 9& 9& 8& 1\end{array}\begin{array}{cccccc}7& 7.& 3& 4& 2& 9\end{array}$

Hence, $52.331+26.01-0.9981=77.3429$.