This blank bingo card is extremely versatile! You can print it off and add numbers, letters, images, etc., to make it fit your desired learning goal!
I like to ask students to fill in numbers 1-24 in a random order on the card. Since students fill in the numbers in a random order, each card becomes unique. I then make up math questions that equate to these numbers.
Alternatively, you could print off a class set and laminate the cards. The cards can then be filled in using a dry-erase marker, and then wiped down to be reused!