Keno
Keno is as easy to learn and play as slots, and in casino gambling, it does not get any easier than that. Begun in China in the 19th century, Keno reached America in the mid-1800s. Today, the game of keno is so big across the country, attracting all ages because of its promise of a huge payout, millions, won on relatively small wagers made.
Keno Strategy
Keno is a game of chance. When you pluck out numbers from 1 through 80, it is random. When 20 numbered balls out of 80 are drawn, it is equally random. 
Join those two variables together and you can expect either of two random outcomes. One is the 50% possibility of a match: one or more of your keno slots matching one or more of the winning numbers. The other, obviously, is the 50% possibility of a no-match.
At best, what affects a game of keno is the law of probabilities. What is the probability that one of your number picks will show up in the winning results? What is the probability that two, or three, and so forth, of your keno slots will be included in the winning numbers?
This is as much of a betting strategy as you can logically employ when playing keno. It can be of use if you want to find which casinos offer the best odds in keno. Otherwise, your best bet as a keno strategy is no doubt smart money management. That is, manage your bankroll in order to maximize your wins and minimize your losses.