My problem: I can read ordinary Chinese numbers (they're the same as Japanese), but these are a mix of different Chinese dialects. I pulled these denominations from my coin collecting reference books:

Green = 1/2 in ordinary Chinese
Brown = 1 in official Chinese
red appears to be 25 in commercial Chinese. You have it sideways; the two strokes should be vertical, and represent "2." What looks like an "8" is actually a "5."
yellow = 5 in official Chinese
white = I don't know, but it's not 1 through 10, 50, 100, 500, or 5000 according to my source