A: i'll have a stick of pencil, two paper of sheet and a eraser of loaf, please
how much will that be all together?
B: the pencil stick is 5 baht, the paper are 2 baht each and the eraser is 5 baht. that makes 20 baht.
A: there you go.
B: thank you, madam 6 baht change. have a nice day.