Human: There are 20 stickers on a page. If you have 12 pages of stickers but lose one of the pages, then how many stickers would you have? Assistant: 
How many pages of stickers do you have after losing one of the pages? ** After losing one of the pages you have 12 - 1 = <<12-1=11>>11 pages of stickers.
How many stickers do you have after losing one of the pages? ** If each page has 20 stickers on it, you have 11 x 20 = <<11*20=220>>220 stickers.
#### 220