I would say that $100 is my minimum amount to budget when visiting a casino. When playing withR$100, the only table game I would be interested in playing is roulette, and only if the bet isR$5 minimum or less. Only getting 10 spins at the table is not my idea of a good time.
Don't bet more than 1% of your household income before tax per month. For example, someone with a household income ofR$70,000 before tax should gamble no more thanR$58 per month.