So, it's 3 and 1/2 pounds, right? So, since the 3 pounds is already written, you just need to find out how many ounces. There are 16 ounces in a pound, so what is 16 divided by 2? Then, you just take 3 and put 3 pounds x ounces. To explain it you could use what I said if you'd like! :)