Complete the Sequence: Finding Missing Numbers Around 84100

To solve this problem, let's determine the consecutive numbers surrounding 84100:

• Step 1: Identify the existing number given, which is 84100.
• Step 2: To find the predecessor, subtract 1 from 84100: $84100 - 1 = 84099$.
• Step 3: To find the successor, add 1 to 84100: $84100 + 1 = 84101$.

The number that comes before 84100 is 84099, and the number that comes after 84100 is 84101. Therefore, the sequence including the given number is:

$84099, 84100, 84101$

Therefore, the correct answer is: $84099, 84101$, which corresponds to choice id="4".