Solve Vertical Addition: 236 + 7 Step by Step

$\begin{aligned} &236 \\ +& \\ &~~~~7 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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

• Align 236 and 7 by their units (rightmost digits).
• Add the numbers starting from the rightmost digit (units), moving left:

Calculating step-by-step:
Step 1: Add the units digit. - Add $6$ (units place of 236) and $7$ (units place): $6 + 7 = 13$.
- This requires regrouping since the sum is more than $9$. Thus, write $3$ in the units place and carry over $1$ to the tens place.

Step 2: Add the tens digit. - Add the carry-over $1$ to the tens digit of 236, $3$: $1 + 3 = 4$.
- Place $4$ in the tens column.

Step 3: Add the hundreds digit. - There is only the hundreds digit $2$ from 236, and no carry-over: Thus result is also $2$ in the hundreds column.

Putting it all together, the sum is: $243$.

Therefore, the solution to the problem is $243$.