First find the total number of glass pieces Jerry sweeps up: 35 green pieces / .25 = <<35/.25=140>>140 pieces

Then subtract the number of pieces of other colors: 140 pieces - 20 pieces - 35 pieces = <<140-20-35=85>>85 pieces

# Answer

85
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jerry is sweeping up pieces of broken glass in the parking lot. He sweeps up 20 amber pieces, 35 green pieces, and some clear pieces. If the green pieces are 25% of the total glass he sweeps up, how many pieces were clear?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
85
Jerry is sweeping up pieces of broken glass in the parking lot. He sweeps up 20 amber pieces, 35 green pieces, and some clear pieces. If the green pieces are 25% of the total glass he sweeps up, how many pieces were clear?
train