Learn all about subtracting two-digit numbers and subtracting three-digit numbers in this free lesson, which includes practice problems.

### Solving Stacked Subtraction Problems

If you feel comfortable with the subtraction skills from Introduction to Subtraction, you're ready to start solving stacked subtraction problems.

Let's try to solve 49 - 7.

With all stacked subtraction problems, we start with the digits that are farthest to the right. Here, we'll begin with 9 and 7.

9 - 7 = 2. The **difference** is 2. It's important to write 2 directly beneath the digits we just subtracted.

Now let's find the difference of the digits to the left. The top digit is 4, but there's nothing beneath it.

4 minus nothing is 4, so we'll write 4 beneath the line.

Our result is 42. 49 - 7 = 42.

Let's see how this works with another problem: 88 - 62.

As always, start with the digits that are farthest to the right. Here, they are 8 and 2.

8 - 2 = 6. Make sure to write 6 below the line.

Next, find the difference of the digits to the left, 8 and 6.

8 - 6 is **2**. Write 2 below the line.

The answer is 26. 88 - 62 = 26.

In the slideshow, you saw that stacked subtraction problems are always solved from **right to left**. The expressions below are solved the same way. First, the** bottom right** digit is subtracted from the **top** right digit. Then, the bottom **left** digit is subtracted from the **top** left digit.

#### Try This!

Stack these subtraction problems and solve them. Then, check your answer by typing it into the box.

#### Subtracting Larger Numbers

Stacked subtraction can also be used for finding the difference of larger numbers. No matter how many digits there are, you subtract the same way every time — from right to left.

#### Try This!

These subtraction problems have larger numbers. Solve them, and then check your answer by typing it into the box.