Chapter 0, Problem 7P

To determine

To find :find each sum and difference.

Answer to Problem 7P

Thus, the addition of given numbers is,

8.8

Explanation of Solution

Given:

Consider the decimals as, 6.5 and 2.3

Calculation:

Consider the decimals as, 6.5 and 2.3

The objective is to find the sum of the above decimal numbers.

Decimal addition is similar to any other addition but it should be ensured that digits after

decimal are same in both.

Here, both have same digits after decimal.

Then addition is performed in normal way, forgetting about decimal point

So,

  $\begin{array}{r}\hfill \\ \hfill 6.5\\ \hfill +2.3\\ \hfill 8.8\end{array}$

Now, decimal point is placed after 1 digit from end as it was placed in each entry for addition

Thus, the addition of given numbers is,

8.8

Conclusion:

Thus, the addition of given numbers is,

8.8