Calling cards are an interesting tradition dating back to the 1700s. They are typically small cards with a unique number on one side and the name of the person on the other.
When you call someone, you can hand them a calling card with your number on it.
If you’re going to participate in bingo, it’s important to make sure you have enough calling cards. A good rule of thumb is to have at least 20 cards per person.
That way, you’ll be able to easily find someone’s number if you need to call them later. Having too few calling cards can be confusing, so be sure to have a sufficient supply before getting started!.
