How many gumballs are there?

2023-11-20 09:44:48

How many gumballs are there?

Gumball Machine Problem from Brian Marks on Vimeo

This problem is a little puzzle to get your students thinking, estimating, and calculating. We've given you a pdf file with only a picture of the gumball machine to use for estimating.
  • How many gumballs are there?
  • At $0.25 per ball, how much will it cost me to buy them all?
  • How long will buying them all take?


For Adventurer members we have our thoughts on how a student might estimate or calculate this quantity.

Activity Solutions & Supporting Materials
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    Throwing Up
     This year, Buffalo, New York, has had more t...
    Crazy basketball score
    Wow! Look at that score! There were some sc...
    Leslie's socially-distanced party
    I risked infecting my friends or becoming infect...
    The tallest structure made of Legos
    Act One: The world record for the tal...
    Double Discount
       Wow, check out this sale!  I...
    April's calf was born!
    At about 10:00 am, April 15th, April's calf ...
    Why Does it Stay in Orbit?
    On Monday, the space shuttle Endeavor launch...
    John Urschel, retired Baltimore Raven and Black mathematician
    John Urschel is a young man with several seeming...
    Refugees from Ukraine
    We are hearing a lot about the war in Ukraine. C...