Solve Vertical Subtraction: 988 minus 78

$\begin{aligned} &988 \\ -& \\ &~~78 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

To solve the problem of subtracting 78 from 988 using vertical subtraction, follow these steps:

Step 1: Write the numbers vertically, aligning by place values:
$\begin{array}{c} 988 \\ -~078~~~~ \\ \underline{\phantom{7760}} \end{array}$

Step 2: Start the subtraction from the rightmost column (the ones place). Subtract 8 from 8 to get 0.

Step 3: Move to the tens column. The numbers are 8 - 7. This gives us 1.

Step 4: Move to the hundreds column. The numbers are 9 - 0. This gives us 9.

The result of the subtraction is:

$\begin{array}{c} 988 \\ -~078~~~~ \\ \overline{910} \end{array}$

Therefore, the solution to the problem is $910$.