Chapter 1, Problem 3QC

To determine

The evaluate: $1.3+2.6$

Answer to Problem 3QC

  $3.9$

Explanation of Solution

Given information:

  $1.3+2.6$

Calculation:

Here we are given with $+$ operator, so we must perform addition for the given numbers.

The addition operation has been performed below for the given numbers-

  $\underset{\_}{\begin{array}{l}\underset{\_}{\begin{array}{l}1.3\\ +2.6\end{array}}\\ 3.9\end{array}}$

First, we will add numbers after the decimal basis their position, adding 3 and 6 will result in 9.

Now we will add numbers before decimal, adding 1 and 2 will yield 3.

So, the final answer is

  $3.9$