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
    A Parametric Heart
    ♥♥♥♥♥♥♥♥ In this updated activity, ...
    Happy Friday the 13th!
    Don't worry, 13 is a Happy number! Students...
    Radiation amounts
    This investigation will help you and your studen...
    When will they collide?
    Show the video to your class. Give students time t...
    How many athletes brought home no medal?
    There must be a lot of Olympians...
    Linsanity
    Jeremy Lin is the New York Knicks most start...
    How fast can you run?
    Have you heard of The Six Million Dollar Man? &n...
    Whole lot of cookies
    This activity has been u...
    How high can a gymnastic score be?
    Gymnasts have just successfully competed in St...
    Clean Close Shave
    Take a look at the infographic.  What do you see? ...