Solve Vertical Subtraction: 55 minus 8 in Column Format

Video Solution

Solution Steps

00:00 Solve

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

00:06 5 is less than 8

00:09 Therefore we subtract 1 from the tens and add this amount to the ones

00:16 So now instead of 5 we will have 15

00:22 We subtract the ones from the ones plus ten

00:26 We put in the ones

00:31 We put 0 in the missing digits

00:34 We subtract tens from tens, and put in the tens

00:37 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll perform the subtraction $55 - 8$ using a step-by-step process:

Step 1: Identify place values for subtraction. The number 55 has a 'tens' place (5) and a 'ones' place (5).
Step 2: Subtract the ones place. We need to subtract 8 from 5. Since 5 is smaller than 8, borrowing is necessary.
Step 3: Borrow from the tens place. Change 55 to 4 tens and 15 ones:

Step 4: Subtract the ones place now: $15 - 8 = 7$ .
Step 5: Subtract the tens place: Now we have 4 in the tens place (after borrowing), so $4 - 0 = 4$ .

Therefore, the result of $55 - 8$ is $\mathbf{47}$ .

The correct answer is 47, corresponding to choice 3.