<human>:  Tom decides to make lasagna with all his beef. It takes twice as many noodles as beef. He has 10 pounds of beef. He already has 4 pounds of lasagna noodles and the noodles come in 2-pound packages. How many packages does he need to buy?
<bot>: How many pounds of noodles does Tom need? ** He needs 10*2=<<10*2=20>>20 pounds of noodles
How many pounds of noodles does Tom need to buy? ** That means he needs to buy 20-4=<<20-4=16>>16 pounds of noodles
How many packages does Tom need to buy? ** So he needs to buy 16/2=<<16/2=8>>8 packages
#### 8