Calculate the Difference: 74 minus 38 Using Vertical Subtraction

Video Solution

Solution Steps

00:00 Solve

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

00:06 4 is less than 8

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

00:15 Meaning now instead of 4 we'll have 14

00:21 Subtract the ones from the ones plus ten

00:24 Place in the ones

00:29 Subtract tens from tens, and place in tens

00:33 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll use vertical subtraction:

Step 1: Set up the subtraction vertically, ensuring the digits align properly. Write 74 above 38, with a subtraction line underneath.
Step 2: Subtract the units column first. We have $4 - 8$ which cannot be done directly since 4 is smaller than 8.
Step 3: Borrow (regroup) from the tens column, converting 74 into 60 and 14. This is achieved by reducing 74 to 6 tens (60) and adding 10 to the 4 units to make it 14.
Step 4: Now, subtract the units: $14 - 8 = 6$ .
Step 5: Next, subtract the tens column: $6 - 3 = 3$ .
Step 6: Combine the results of the tens and units: $36$ .

Therefore, the solution to the problem is $36$ , which corresponds to choice 4.