Solve Three-Digit Addition: 376 + 214 in Vertical Format

$\begin{aligned} &376 \\ +& \\ &214 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

To solve this problem, we'll use a step-by-step approach with vertical addition:

• Step 1: Write both numbers vertically, aligning by place value.
  $\begin{aligned} & \phantom{1}376 \\ + & \phantom{1}214 \\ \end{aligned}$
• Step 2: Start with the ones place (rightmost column). Add 6 (from 376) and 4 (from 214):
  $6 + 4 = 10$. Write 0 in the ones place and carry over 1 to the tens place.
• Step 3: Move to the tens place. Add 7 + 1 (carry) + 1:
  $7 + 1 + 1 = 9$. Write 9 in the tens place.
• Step 4: Move to the hundreds place. Add 3 + 2:
  $3 + 2 = 5$. Write 5 in the hundreds place.

The final result of the addition is $590$.

Therefore, the solution to the problem is $590$.