99, 98, 198, 197, 297, 296, 396 pattern rule

-1, +100 ...

Well, it looks like we have a pattern where each number decreases by 1, then increases by 100, then decreases by 1 again, and so on. So, you could say the pattern rule is "subtract 1, add 100, subtract 1, add 100, and so on." It's like a rollercoaster ride, but with numbers! Wheee! 🎢

The given pattern seems to be decreasing by 1 for the first digit and decreasing by 2 for the second digit in each consecutive pair of numbers.

Here is the step-by-step breakdown of the pattern:

Starting with the number 99:
- The first digit decreases by 1 and the second digit decreases by 2 to form the number 98.
- The next number in the pattern is formed by adding 99 (initial number) with 99. So, 99 + 99 = 198.
- The first digit (1) decreases by 1 and the second digit (9) decreases by 2 to form the number 197.
- To find the next number, we add the previous number (198) with 99. So, 198 + 99 = 297.
- The first digit (2) decreases by 1 and the second digit (9) decreases by 2 to form the number 296.
- Finally, to find the last number, we add the previous number (297) with 99. So, 297 + 99 = 396.

Therefore, the pattern rule for this sequence is:

1. The first digit decreases by 1.
2. The second digit decreases by 2.
3. To find the next number, add the previous number with 99.

To find the pattern rule for the given sequence 99, 98, 198, 197, 297, 296, 396, we need to identify the relationship between the numbers.

One possible pattern rule for this sequence is:
- Starting with the number 99, each subsequent number is first decreased by 1, then increased by 100.

Here's the breakdown:
- The sequence starts with 99.
- The next number is obtained by subtracting 1 from the previous number (99 - 1 = 98).
- The next number is obtained by adding 100 to the previous number (98 + 100 = 198).
- The following number is obtained by subtracting 1 from the previous number (198 - 1 = 197).
- The pattern continues in the same manner, alternating between subtracting 1 and adding 100 to the previous number.

Using this pattern rule, we can continue the sequence as follows:
396 (296 + 100), 395 (396 - 1), 495 (395 + 100), 494 (495 - 1), and so on.