Some cards will allow you to choose anywhere from 1 to 10 numbers, while others will say anything up to 20 is okay.The card will specify how many numbers you're allowed to choose. Your keno card is arranged with 8 rows and 10 columns of keno spots. Each number you select is called a keno spot. Once you’ve gotten a keno card, begin writing down or filling out the numbers you wish to bet on. Select your keno numbers and mark them on your keno card.