<human>:  Peggy buys 3 folders, one each in the colors red, green, and blue. She puts ten sheets of paper in each folder, and then, she puts star-shaped stickers on each sheet of paper. In the red folder, each sheet of paper gets 3 stickers. In the green folder, each sheet of paper gets 2 stickers, and in the blue folder, each sheet gets 1 sticker. What is the total number of stickers Peggy uses?
<bot>: How many stickers are on the red folder? ** For the red folder, 10 sheets of paper get 3 stickers each, for a total of 10*3=<<10*3=30>>30 stickers.
How many stickers are on the green folder? ** For the green folder, 10 sheets of paper get 2 stickers each, for a total of 10*2=<<10*2=20>>20 stickers.
How many stickers are on the blue folder? ** For the blue folder, 10 sheets of paper get 1 sticker each, for a total of 10*1=<<10*1=10>>10 stickers.
How many stickers does Peggy use? ** In total, she uses 30+20+10=<<30+20+10=60>>60 stickers.
#### 60