Twentyfour Challenge
Twentyfour Challenge is a new version of the old game called "24." The goal is to combine the given numbers using +, -, /, and * to make the target number. It is a good brain exercise for all ages.
In particular it teaches children:
- basic arithmetic skills
- operator precedence
- expression evaluation
Game features include:
- tracking of personal high scores
- whole numbers and fractions
- various difficulty levels
Best of all its free!