Math is Fun

Math is Fun Home PageHOME

A-Z Listing


Top-rated teacher Web sites rated by teacher usage
Edunet site of the week January 2001
Maths Is Fun is ICRA Registered
Copyright © 2006
MathsIsFun.com

Four Fours

Puzzles -> Number Puzzles

Four FoursA popular mathematical passtime:

Use exactly four 4's to form every integer from 0 to 50, using only the operators +, -, x, /, () (brackets) x2 (square), and ! (factorial).

Example: 0 = 44-44




.
-\./^\./-


Do you have the answer? Check against our solution!
Discuss this puzzle at our Forum