Cindy gave her four friends 80 marbles each, a total of 4*80 = <<80*4=320>>320 marbles

She was left with 500-320 = <<500-320=180>>180 marbles

Four times the number of marbles she has remaining is 180*4 = <<180*4=720>>720

# Answer

720
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Out of the 500 marbles that Cindy had, she gave her four friends 80 marbles each. What's four times the number of marbles she has remaining?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
720
Out of the 500 marbles that Cindy had, she gave her four friends 80 marbles each. What's four times the number of marbles she has remaining?
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