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
    Coronavirus trends
    Johns Hopkins University of Medicine has a team ...
    Inflation and the cost of gasoline
     In 1980, one gallon of gasoline costs $1.22....
    How many athletes brought home no medal?
    There must be a lot of Olympians...
    Occupy Wall Street protest is growing
       The Occupy Wall Street (OWS) movem...
    Data remaining ... tricky
    I checked my data usage for...
    Benoît Mandelbrot
    In October, 2010, Benoît Mandelbrot died in Ca...
    Mardi Gras, 2023
    Updated for 2023! Tuesday, February 21, 202...
    Cruising
    There have been a lot of cruise ship mishaps and...
    Let's learn to gerrymander
    In this activity student first try to redistrict o...