Solve Three-Digit Subtraction: 936 minus 768 in Vertical Format

Video Solution

Solution Steps

00:00 Solve

00:03 Each time we consider a shortage of 2 digits, and then we'll place

00:06 6 is less than 8

00:12 Therefore we'll subtract 1 from the tens and add this amount to the ones

00:20 So now instead of 6 we'll have 16

00:25 We'll subtract the ones from the ones plus ten

00:28 We'll place in the ones

00:34 2 is less than 6

00:44 Therefore we'll subtract 1 from the hundreds and add this amount to the tens

00:48 So now instead of 2 we'll have 12

00:52 We'll subtract the tens from the tens plus ten

00:59 We'll place in the tens

01:06 We'll subtract hundreds from hundreds, and place in hundreds

01:11 And this is the solution to the problem

Step-by-Step Solution

To solve this subtraction problem, we'll perform vertical subtraction, which involves subtracting each corresponding pair of digits from right to left.

Step 1: Arrange the numbers vertically.
- Write 936 (the minuend) on top.
- Write 768 (the subtrahend) below it, aligning the digits by place value.
Step 2: Subtract the ones place.
Subtract 8 from 6. Since 8 is larger than 6, we need to borrow 1 from the tens place:
- Decrease the digit in the tens place (from 3 to 2).
- Increase the ones digit by 10 (making it 16).
- 16 - 8 = 8, write 8 below the line.
Step 3: Subtract the tens place.
Now subtract 6 from the adjusted tens digit (2):
- Since 6 is larger than 2, borrow 1 from the hundreds place (from 9 to 8).
- Increase the tens digit by 10 (making it 12).
- 12 - 6 = 6, write 6 below the line.
Step 4: Subtract the hundreds place.
Subtract 7 from the adjusted hundreds digit (8):
- 8 - 7 = 1, write 1 below the line.

Thus, the result of the subtraction $936 - 768$ is 168.

Solve Three-Digit Subtraction: 936 minus 768 in Vertical Format

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