If billy has 3 lemons and josh has 2 lemons then how many more lemons does billy have

Billy has 1 more lemon more than josh.

3-2=1

Billy = 3 lemons

Josh = 2 lemons

3 - 2=1

Billy has 1 more lemon that Josh.

Note: When the question asked for "How many more", it is asking for the difference, and the operation is generally minus.