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

### Instruction:
Bob orders a pizza with 8 slices.  He eats half of it and each slice was 300 calories.  How many calories did he eat?

### Response:
Slice: 300 calories
8 slices: 300*8=<<300*8=2400>>2400 calories
1/2 pizza: 2400/2=<<2400/2=1200>>1200 calories
#### 1200