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
    Let's learn to gerrymander
    In this activity student first try to redistrict o...
    Cholera in Haiti
    On January 12th of 2010, there was a tremendous,...
    A Glass of Sweat
    What is this machine for?  ...
    Total lunar eclipse
    On the morning of November 8, 2022, many of us...
    Is my son going to win again?
      Brian son's pretty young but is ...
    Which is the best deal?
    How do you calculate and justify which dea...
    How big is this hornet really?
    Egad !!!!   Giant Asian hornets have no...