Solve Vertical Addition: 67 + 3 Step-by-Step

To solve this problem, we'll follow these steps:

• Step 1: Align the numbers vertically according to their place values:
  $\begin{aligned} &67 \\ +& \\ &~~3 \\ &\underline{\phantom{776}} \end{aligned}$
• Step 2: Begin adding from the rightmost column (units).
• Step 3: Add the digits in the units place: $7 + 3 = 10$.
• Step 4: Since the result is 10, write down the 0 under the units column and carry over the 1 to the tens column.
• Step 5: Next, add the digits in the tens column: $6 + 1 = 7$.
• Step 6: Combine the results from the tens and units columns to form the final sum.

Therefore, the solution to the problem is $70$.