Solve Vertical Subtraction: 97 minus 68 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 7 is less than 8

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

00:13 Which means now instead of 7 we will have 17

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

00:21 We place in the ones

00:25 We subtract tens from tens, and place in the tens

00:29 And this is the solution to the problem

Step-by-Step Solution

To solve the subtraction problem $97 - 68$ , we'll follow these steps:

Step 1: Set up the numbers vertically, aligning the digits by place value.
Step 2: Subtract the digits in the units column. Here, $7 - 8$ is not possible without borrowing.
Step 3: Borrow 1 from the tens column of 97, changing it to 8, and making the units column 17 (since 7 becomes 17 after borrowing).
Step 4: Subtract the units: $17 - 8 = 9$ .
Step 5: Move on to the tens column: $8 - 6 = 2$ .

Now, let's work through the subtraction:

Starting with the units: Borrow from the tens column, so the number in the tens becomes 8 and the units digit becomes 17.

Calculate the units: $17 - 8 = 9$ .

Then, calculate the tens: $8 - 6 = 2$ .

Putting it all together, the subtraction $97 - 68$ results in $29$ .

Therefore, the solution to the subtraction problem is $29$ .