I am sure, as an ESL teacher, you have or currently use money in your class (either as a motivational tool for individual activities or for behaviour management). Now, it is fairly easy to find canned copies of various currencies from around the world. However, finding a consistent set isn't easy.
The PDF book contains sheets of notes from 1 to 50. I have called them Money (rather than dollars or pounds) simply because my students often struggle with a name for their money or just call them dollars. And, as this money is only meant as a lesson tool, the name is not important. Just print out as many as you need and cut them up, ready for class.