Calculate 677 minus 85: Vertical Subtraction Practice

To solve this subtraction problem, we will follow these steps:

• Step 1: Set up the subtraction problem, aligning the numbers vertically by their place values:

$\begin{aligned} &\:6\:&7\:&&7 \\ - & \: \:&8\:&&5 \\ \underline{\phantom{777}} \end{aligned}$

• Step 2: Begin subtracting from the units column:

$7 - 5 = 2$. Write 2 in the units place of the answer.

• Step 3: Move to the tens column:

We have $7 - 8$, which requires borrowing.

Borrow 1 from the hundreds column, reducing 6 to 5, and add 10 to the 7 in the tens column, making it 17.

Now, $17 - 8 = 9$. Write 9 in the tens place of the answer.

• Step 4: Move to the hundreds column:

Now, $5 - 0 = 5$. Write 5 in the hundreds place of the answer.

After completing all these steps, the answer to the subtraction problem is $\textbf{592}$.

Therefore, the solution to the problem is $592$.