Yes, multiplication does have its luxuries. I wish I had that power in real life. Then I don’t have to really earn my money. 
Multiplication wouldn’t work with money. Remember the serial number on every single note? There is only one of every serial number, and if there is more than one, then it’s absolutely certain that it’s a fake or a copy. But other than that, multiplication coud be very useful.
Really now? I didn’t know that. I guess there goes easy money right there. But it would be cool to multiply yourself. YOu can be in two places at the same time that way.
Sorry, but it won’t work with bills. But this idea just came to me…Coins. Gold. Platinum. They don’t have serial numbers or anything like that. Nothing like that. If you had just one block of pure platinum…in an hour you’d be a trillionaire with the multiplication power. 
Well, there you go then. Another way to make easy money without the actual cash! 