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

### Instruction:
 一袋果冻豆里有8颗黑豆和比绿豆多2颗。还有比绿豆少1颗橙豆。这袋果冻豆里有多少颗？


### Response:
 有8颗黑豆 + 2颗绿豆 = <<8+2=10>>10颗绿豆。
比绿豆少1颗橙豆 = 10 - 1 = <<10-1=9>>9颗橙豆。
绿豆和橙豆的总数 = 9颗橙豆 + 10颗绿豆 = <<9+10=19>>19颗豆子。
再加上黑豆 = 19颗豆子 + 8颗黑豆 = <<19+8=27>>27颗豆子。