Solve Vertical Subtraction: 988 minus 78

Video Solution

Solution Steps

00:00 Solve

00:03 Each time calculate subtraction of 2 digits, and then place

00:06 Let's start by subtracting ones from ones, and place in ones

00:09 Subtract tens from tens, and place in tens

00:13 Place 0 in the missing digits

00:16 Subtract hundreds from hundreds, and place in hundreds

00:19 And this is the solution to the question

Step-by-Step Solution

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 $910$ .