Paul got a box of 267 crayons for his birthday. During the school year he lost 231 crayons while he gave away 308 crayons to his friends. How many more crayons did he give to his friends than those he lost?
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Paul got a box of 267 crayons. 
During the school year he lost 231 crayons. 
That means he has 36 crayons left. 
He gave away 308 crayons to his friends. 
That means he gave away 272 more crayons than he lost.