Tyler gives away 21 / 3 = <<21/3=7>>7 CDs

After giving away a third of his CDs, Tyler has 21 - 7 = <<21-7=14>>14 CDs

After buying new CDs, Tyler has 14 + 8 = <<14+8=22>>22 CDs

# Answer

22
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Tyler has 21 CDs. He gives away a third of his CDs to his friend. Then he goes to the music store and buys 8 brand new CDs. How many CDs does Tyler have now?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
22
Tyler has 21 CDs. He gives away a third of his CDs to his friend. Then he goes to the music store and buys 8 brand new CDs. How many CDs does Tyler have now?
train