Question: 7.05 + 3.7 =
1. **State the problem:** We need to find the sum of $7.05$ and $3.7$.
2. **Recall the addition rule:** When adding decimal numbers, align the decimal points and add digit by digit.
3. **Align the numbers:**
$$\begin{array}{r}
7.05\\
+3.70\\
\hline
\end{array}$$
4. **Add the digits starting from the right:**
- $5 + 0 = 5$
- $0 + 7 = 7$
- $7 + 3 = 10$
5. **Write the result:**
$$\begin{array}{r}
7.05\\
+3.70\\
\hline
10.75
\end{array}$$
6. **Final answer:** The sum of $7.05$ and $3.7$ is $10.75$.