Flashback flashcards!

Do you remember these? Did you use these flashcards back in school?

I just had the best flashback. I came across these in a giveaway pile at work! I can't believe someone was getting rid of them. I used the same flashcards when I was in elementary school. My math teacher played a game called Around the World. I'll never forget that game. I am keeping these vintage flashcards forever.