Solve Vertical Subtraction: 47 minus 29

$\begin{aligned} &47 \\ -& \\ &29 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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

• Step 1: Align the numbers vertically, ensuring the ones and tens digits are in the correct columns.
• Step 2: Subtract starting from the ones place, and if needed, borrow from the tens place.
• Step 3: Subtract the tens place.

Let's work through each step:

Step 1: Write the numbers vertically:
$\begin{array}{c} 47 \\ - 29 \\ \end{array}$

Step 2: Start with the ones place: Subtract 9 from 7. Since 7 is less than 9, we will borrow 1 from the tens column, making 7 become 17 in the ones place and reducing the 4 in the tens place to 3:

- Subtract 17 - 9 = 8

Step 3: Now, move to the tens place. Since we borrowed 1, adjust the tens place. Subtract 2 from 3:
- Subtract 3 - 2 = 1

So, writing the subtraction in full gives us:

$\begin{array}{c} 47 \\ - 29 \\ \hline 18 \\ \end{array}$

Therefore, the solution to the problem is 18.