A cute mathematical challenge

Engagement, Pre-Algebra 1 Minute

Show each number from 0 to 25 as a combination of four 4s. You can do any operation (multiply, divide, exponent, etc.) you want in any combination, but you must use all four 4s and you cannot use any other numbers.

For example: 16 = 4+4+4+4 (using all four 4 s and addition)

Unknown's avatar

Published by John Quintanilla

I'm a Professor of Mathematics and a University Distinguished Teaching Professor at the University of North Texas. For eight years, I was co-director of Teach North Texas, UNT's program for preparing secondary teachers of mathematics and science.

Published

Leave a comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.