Calculate the Sum: 148 + 1103 Addition Problem

To solve this problem, we'll perform column addition:

• Step 1: Write the numbers in column form: $\begin{array}{c} \phantom{.00} 148 \\ + 1103 \\ \hline \\ \end{array}$

• Step 2: Add the units digit: $8 + 3 = 11$. Write $1$ and carry over $1$.

• Step 3: Add the tens digit plus carry over: $4 + 0 + 1 = 5$.

• Step 4: Add the hundreds digit: $1 + 1 = 2$.

• Step 5: Finally, add the thousands digit: $1$. (Only one digit in this place value)

Performing the addition, we have: $\begin{array}{c} \phantom{.00} 148 \\ + 1103 \\ \hline ~~~1251 \\ \end{array}$

Therefore, the sum of $148 + 1103$ is $\textbf{1251}$.

The correct choice from the given options is:

$1251$