Solve Vertical Subtraction: 97 minus 68 Step-by-Step

$\begin{aligned} &97 \\ -& \\ &68 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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 $29$.