<human>:  James has 18 chocolate bars to sell for the swim team. He sold 5 last week and 7 this week. How many more chocolate bars does he need to sell?
<bot>: How many chocolate bars has James sold so far? ** He has sold a total of 5 + 7 = <<5+7=12>>12 chocolate bars so far.
How many more chocolate bars does James need to sell? ** James needs to sell 18 - 12 = <<18-12=6>>6 more chocolate bars.
#### 6