Complete the Arithmetic Sequence: 200, 300, 400...

The sequence provided is $200, 300, 400, \ldots$. To determine the pattern, calculate the difference between consecutive terms:

• The difference between $300$ and $200$ is $100$.
• The difference between $400$ and $300$ is $100$ again.

This confirms the sequence increases by $100$ for each successive term. To extend this sequence:

• Add $100$ to $400$ to get $500$.
• Add $100$ to $500$ to get $600$.
• Add $100$ to $600$ to get $700$.

Thus, the sequence continued is: $200, 300, 400, 500, 600, 700$.

The correct answer is:
$200,300,400,500,600,700$