<human>:  For a fundraiser, Nellie needs to sell 45 rolls of gift wrap. So far, she has sold 1 roll to her grandmother, 10 rolls to her uncle, and 6 rolls to a neighbor. How many more rolls of gift wrap does Nellie need to sell?
<bot>: How many rolls of gift wrap have been sold? ** The number of rolls already sold is 1 + 10 + 6 = <<1+10+6=17>>17.
How many more rolls of gift wrap does Nellie need to sell? ** Nellie needs to sell 45 − 17 = 28 more rolls of gift wrap.
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