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

### Instruction:
Mark had 10 pieces of fruit to eat in school this week. On Friday, he decided to keep 2 pieces of fruit for next week. He then brings the remaining 3 pieces of fruit to school for the day. How many pieces of fruit did Mark eat in the first four days of the week?

### Response:
Only 10 - 2 = <<10-2=8>>8 pieces of fruit were eaten this week.
Subtracting Friday’s snacks shows Mark ate 8 - 3 = <<8-3=5>>5 pieces of fruit in the first four days of the week.
#### 5