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
    Stacking Jack
    Act One: Check out the video slide show. &nb...
    Mental math tricks - part 2
    36 x 25 = 900     480 x 25 =12,000  ...
    The drag in swimming - More Olympics activities
     To win in Olympic swimming, cont...
    Figuring planting dates
      It's time to get ready to plant my gar...
    What does 95% confidence in the poll results mean?
    There have been a lot of polls about who wil...
    How high can a gymnastic score be?
    Gymnasts have just successfully competed in St...
    It's Girl Scout cookie time again!
      Let your students talk about...
    What are the odds that Justify can win the Triple Crown?
    Justify has won the Triple Crown.  He's...
    The Game of Go
    March 9th was the first round...