Cheesie Mack

Four Coins = 83 Cents

In Cheesie Mack Is Not a Genius or Anything, my grandfather Gumpy gave me a math problem while he was tapping his fingers together. Here’s what it was:

“Let’s say (tap, tap) there’s eighty-three cents in my pocket,” he said. “What’s the fewest number of coins I could have?”

“United States coins?” I asked.

He nodded (tap, tap).

I thought for a few seconds and answered, “Four.”

His forehead wrinkled up like he was surprised at me. “Nope. Six. A half-dollar, a quarter, a nickel, and three pennies.”

But I proved I was right . . . and he was amazed.

Did you figure it out?

Most kids think the correct answer is seven: three quarters, a nickel, and three pennies.

massachusetts-quarter newyork-quarter

But that’s wrong because most kids don’t even think about a half dollar because they usually never see one. (I can’t remember the last time I held a half dollar!) But Gumpy knew about half dollars. That’s why he thought the answer was six.

So why is the correct answer four coins? Because in the 19th Century—at two different times, 1851-1873 and 1865-1889—the United States minted three-cent coins. I learned that when I was researching the 1909 Lincoln Cent that Georgie and I found in his basement.


I have never seen a three-cent coin for real.


If you want to try to puzzle your family and friends with questions like this, you need to know that the United States also had twenty-cent, two-cent, and half-cent coins.

*     *     *     *     *

Update: Look what I got in the mail!


Here’s what was in the letter.  I made the image much, much larger so the details are visible. You can see that it’s not the same as the three-cent coin above. The USA made two different designs in the 19th century. And now I actually own one. How cool is that?!

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What Others Are Saying

  1. Kyle says:

    I think it had JFK on it…

  2. Kyle says:

    my grandma has a $10 coin! I saw it! Its real!

    • Cheesie says:

      Does it say “Republic of Liberia” on the back? If so, it’s not really worth $10. I looked it up. You should, too.

  3. Tyler says:

    i immediately looked at the ancwer

  4. Duncan says:

    Thats cool, about five seconds after I read this, I immediately got on the computer to see what the answer was!

  5. Ricardo says:

    I already knew the answer to the question after I read the book, and that was before I even got on the computer!

  6. There’s one coin (the Victory Coin) that has morse code on the rim of it :P

    • Cheesie says:

      I never knew that! So cool. I just looked it up and the code on the side says, “We win when we work willingly.”

      I wonder why all the words started with W.

      Here’s what that would be in Morse Code:
      .– .   .– .. -.    .– …. . -.    .– .    .– — .-. -.-    .– .. .-.. .-.. .. -. –. .-.. -.–

      THANKS for telling this to me!

  7. sam says:

    what is the third book going to be about? Are you still working on it?

  8. sam says:

    is the third book going to be called “Cheesie Mack is Running Like Crazy”?

  9. Taylor S. Chhay says:

    I have a coin that equals to 1 dollar. I’m never going to spend it!!!

  10. Remy says:

    the coin u said u did not know what side was heads i think its pic. #2.

  11. gla says:

    Also (sorry i am typing so much) i never knew that 3 cent coins existed….i wonder how many are left.

  12. gla says:

    That is really cool…too bad it has a hole in it…what are you going to do with it???? Also about that half dollar coins my brother has 3 of them…and i have 1 of them they are really cool (but, i never use them)

    • Cheesie says:

      I am going to keep it forever! I don’t think I’ll ever have another three-cent coin. My Granpa has a sock in his dresser that is filled with old half dollars. He let me look at them, but that’s all.

      • gla says:

        Good choice that’s what i would do with one too!! That’s cool about all the half dollar coins you grandpa has…i wonder how many he has.:D

  13. Priya says:

    I’m on page 91.it’s a really good book so far.

  14. Alex says:

    Sick cheesie!

  15. Aron says:

    that’s a nice puzzle. i never knew about 3 cent coins till i read this book. cool!

  16. Jane T says:

    I think coins are cool!

  17. Julia says:

    Now that’s coolio

  18. aaron says:

    man i haven’t even fineshed the book and i’m on the website

  19. Max says:

    i wish i had one of every type of coin ever made

  20. :3 says:

    i never knew ther was a 3 cent or a 20 cent or a 2 cent coin before! love your book

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