Luke started putting together, 1000 x 0.1 = <<1000*0.1=100>>100 pieces.

The next day, there were 1000-100 = <<1000-100=900>>900 pieces left.

Then he put together 900 * 0.2 = <<900*0.2=180>>180 pieces on the second day.

So there were 900 - 180 = <<900-180=720>>720 pieces left.

On the third day, he put together 720 * 0.3 = <<720*0.3=216>>216 pieces.

Therefore, Luke still has 720 - 216 = <<720-216=504>>504 pieces left to complete the puzzle.

# Answer

504
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Luke started working on a 1000-piece jigsaw puzzle. The first day he worked on it, he put together 10% of the pieces. On the second day, he put together another 20% of the remaining pieces from the first day. On the third day, he put together 30% of the remaining pieces from the previous day. How many pieces does he have left to complete after the third day?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
504
Luke started working on a 1000-piece jigsaw puzzle. The first day he worked on it, he put together 10% of the pieces. On the second day, he put together another 20% of the remaining pieces from the first day. On the third day, he put together 30% of the remaining pieces from the previous day. How many pieces does he have left to complete after the third day?
train