Complete the Number Sequence: Finding Missing Terms Around 9899

The task is to identify the predecessor and successor of the number 9899 in a sequence of natural numbers.

Step 1: Determine the Predecessor
To find the predecessor of 9899, calculate:

• $9899 - 1 = 9898$

Therefore, the predecessor is 9898.

Step 2: Determine the Successor
To find the successor of 9899, calculate:

• $9899 + 1 = 9900$

Therefore, the successor is 9900.

After determining the predecessor and successor, we find:

• Predecessor: 9898
• Successor: 9900

The correct choice based on the calculations provided is:

$9898,9900$

Therefore, the sequence is complete as: 9898, 9899, 9900.