2023-11-20 09:44:39
Wow, everything must be free!
Wow, everything must be free!

What happens when you take 50% off again after taking 50% off at first?
Students examine this retailer trick of giving double discounts. What happens to the price when you are given a double discount? Could everything be free?
Comments (0)
Display 1 - 10 Of total 0
John Urschel, retired Baltimore Raven and Black mathematician
John Urschel is a young man with several seeming...
Largest coffee, new world record
The world record for the largest cup of co...
How much have doughnuts changed?
Part of the Smithsonian's Sally L. Steinberg C...
The drag in swimming - More Olympics activities
To win in Olympic swimming, cont...
Chocolate Milk Account
🔔 Free Trial Alert! In this activity, student...
Cost of light bulbs
This activity has been updated (2026). See t...
California water measurements - chains, links, and furlongs
Help your students understand what they are ...
Tiny vacuum with a huge reach
From the vacuum description and advertisement in...
Pythagorean Triples and coloring
Pythagorean triples are not only ...