Question: User: Adding decimals: thousandths
Problem
\[0.195 + 89.1 =\]
1. **State the problem:** We need to add the decimals $0.195$ and $89.1$.
2. **Align the decimals:** Write the numbers so the decimal points line up:
$$
\begin{array}{r}
0.195 \\
89.1 \\
\end{array}
$$
3. **Add trailing zeros:** To add easily, add zeros to $89.1$ to make it $89.100$ so both numbers have the same number of decimal places:
$$
\begin{array}{r}
0.195 \\
89.100 \\
\end{array}
$$
4. **Add the numbers column by column:**
$$
\begin{array}{r}
0.195 \\
+89.100 \\
\hline
89.295 \\
\end{array}
$$
5. **Final answer:** The sum of $0.195$ and $89.1$ is $89.295$.
This method works because adding zeros to the right of a decimal number does not change its value, it just helps align the digits for addition.