Vertical Format Mathematics: Subtracting 8 from 76

Question

amp;76amp;amp;  8amp;776amp; \begin{aligned} &76 \\ -& \\ &~~8 \\ &\underline{\phantom{776}} & \\ \end{aligned}

Video Solution

Solution Steps

00:00 Solve
00:03 Each time consider a subtraction of 2 digits, and then place
00:06 8 is less than 9
00:09 Therefore subtract 1 from tens, and add this amount to ones
00:14 Meaning now instead of 8 we will have 18
00:18 Subtract the ones from ones plus the ten
00:21 Place in ones position
00:24 Place 0 in the missing digits
00:27 Subtract tens from tens, and place in tens position
00:30 And this is the solution to the question

Step-by-Step Solution

Let's solve the subtraction problem:

When subtracting two numbers vertically, begin with the rightmost column, which involves the ones.
Step 1: Subtract the ones place digits: 6 - 8. Since 6 is less than 8, we cannot subtract directly. Therefore, we need to borrow 1 ten (equivalent to 10 ones) from the tens place.
Step 2: After borrowing, the tens digit of 76 (7) reduces by 1, becoming 6, and the ones digit gets 10 more, making it 16.
Step 3: Now, subtract the ones place: 16 - 8 = 8.
Step 4: Then, subtract the tens place: 6 - 0 = 6. Recall that we subtracted 1 ten earlier.
Combine the two results for the final answer: 68.

Therefore, the solution to the subtraction problem is 768=68 76 - 8 = 68 .

The correct choice from the given options is 68.

Answer

68