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

### Instruction:
For a school fundraiser, Chandler needs to sell 12 rolls of wrapping paper. So far, he has sold 3 rolls to his grandmother, 4 rolls to his uncle, and 3 rolls to a neighbor. How many more rolls of wrapping paper does Chandler need to sell?

### Response:
 จำนวนม้วนที่ขายไปแล้วคือ 3 + 4 + 3 = <<3+4+3=10>>10 ม้วน
เชนด์เลอร์ต้องขายกระดาษห่ออีก 12 - 10 = <<12-10=2>>2 ม้วน