Hello, If I use the money gem for storing amounts of money which can be payed by a user, can I also do calculations on it . Roelof -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/6838ac1d-94e8-4d45-9034-15ea6de20eef%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.