Solve Vertical Subtraction: 98 minus 79 Step-by-Step

Video Solution

Solution Steps

00:00 Solve

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

00:06 8 is less than 9

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

00:13 So now instead of 8 we will have 18

00:17 We subtract the ones from ones plus the ten

00:21 Place in ones

00:24 Subtract tens from tens, and place in tens

00:27 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll subtract the two-digit numbers using the vertical subtraction method:

Step 1: Set up the problem vertically with minuend (98) above the subtrahend (79). Ensure digits are aligned by place value.
Step 2: Begin subtracting from the right-most column, the units place (8 - 9). Since 8 is less than 9, we must regroup.
Step 3: Regroup by borrowing 1 ten from the tens place of 98. This changes the tens place from 9 to 8, and the ones place becomes 18.
Step 4: Subtract the units column: $18 - 9 = 9$ .
Step 5: Now subtract the tens place digit. After borrowing, the tens digit of 98 is 8. Subtract: $8 - 7 = 1$ .

Combining the results from the two columns, we find that $98 - 79 = 19$ .

Therefore, the solution to the problem is $19$ .