No. 355: In order to correctly play bingo, the cards that you give out to your students must be different from each other. If the cards are the same, everyone gets the same result.

No. 356: If your students are 7 and 9 years old, aren't experienced bingo players, don't have a firm grasp on English, and are slightly gullible, you can pretend that that's how the game is supposed to be played. And since there are no losers, there are no tears at the end of the game. Everyone wins, including the teacher.