Solve Vertical Subtraction: 43 minus 6

$\begin{aligned} &43 \\ -& \\ &~~6 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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

• Step 1: Perform vertical subtraction aligning the numbers by place value.

• Step 2: Subtract the digits in the ones place and the tens place, borrowing if needed.

Now, let's work through each step:

Step 1: Write the numbers vertically:

$\begin{aligned} &43 \\ -& \\ &~~6 \\ \end{aligned}$

Step 2: Begin subtracting from the right (ones place):

- $3 - 6$ needs borrowing since 3 is less than 6.
- We borrow 1 from the tens digit, turning 3 into 13 and reducing the 4 to 3 in the tens place.

- Now, subtract: $13 - 6 = 7$.

Move to the tens place:

- With the tens place borrowed from earlier, $3 - 0 = 3$.

Therefore, the answer to the subtraction $43 - 6$ is $\mathbf{37}$.

Thus, the correct answer is $37$