Arthur spent 4/5 * $200 = $<<4/5*200=160>>160.

Thus he has $200 - $160 = $<<200-160=40>>40 remaining.

# Answer

40
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Arthur has $200 in his wallet. He spends four-fifths of that. How much does he have left?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
40
Arthur has $200 in his wallet. He spends four-fifths of that. How much does he have left?
train