Amount spent on textbooks is 960/2 = <<960/2=480>>480 dollars.

Amount spent on school supplies is 480/4 = <<480/4=120>>120 dollars.

Amount Derek has left 960-480-120 = <<960-480-120=360>>360 dollars.

# Answer

360
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Derek has $960 to buy his books for the semester. He spends half of that on his textbooks, and he spends a quarter of what is left on his school supplies. What is the amount of money Derek has left?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
360
Derek has $960 to buy his books for the semester. He spends half of that on his textbooks, and he spends a quarter of what is left on his school supplies. What is the amount of money Derek has left?
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