Each grandchild gets 2*80=$<<2*80=160>>160 a year

So that means they get a total of 3*160=$<<3*160=480>>480

# Answer

480
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jean has 3 grandchildren.  She buys each grandkid 2 cards a year and puts $80 in each card.  How much does she give away to grandchildren a year?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
480
Jean has 3 grandchildren.  She buys each grandkid 2 cards a year and puts $80 in each card.  How much does she give away to grandchildren a year?
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