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

### Instruction:
 丹尼为他的班级做了巧克力饼干，并确保每个饼干上都有7颗巧克力豆。他总共做了4打饼干。如果班级吃掉一半的饼干，剩下多少颗巧克力豆没有被吃掉？


### Response:
 丹尼做了4 * 12 = <<4*12=48>>48个饼干。
班级吃掉了48/2 = <<48/2=24>>24个饼干。
每个饼干有7颗巧克力豆，所以24个饼干有24 * 7 = <<24*7=168>>168颗巧克力豆。