Below is an instruction that describes a task. Write a response that appropriately completes the request in Thai. Please answer in Thai.

### Instruction:
Greg is riding his bike around town and notices that each block he rides, his wheels rotate 200 times. He's now on a a trail and wants to make sure he rides at least 8 blocks. His wheels have already rotated 600 times, how many more times do they need to rotate to reach his goal?

### Response:
 ล้อจะต้องหมุน 1,600 รอบเพราะ 8 x 200 = <<8*200=1600>>1,600
ล้อจะต้องหมุนอีก 1,000 รอบเพราะ 1,600 - 600 = <<1600-600=1000>>1,000