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

### Instruction:
 托比正在烤面包并涂上花生酱。他想确保早餐摄入500卡路里。一片面包有100卡路里。一份花生酱有200卡路里。如果他有一片面包，他应该加多少份花生酱？


### Response:
 他需要400卡路里的花生酱，因为500 - 100 = <<500-100=400>>400
他需要2份花生酱，因为400 / 200 = <<2=2>>2