This sampler for our Mental Math Mentor software operates in a self-paced tutorial format. Students learn short-cuts and skills for success in the Number Sense contest. The exercises and examples are presented clearly and logically, and were selected by Don Skow, long-time director of the contest. Some 70 skills are presented with problems generated for each to test your students thoroughly. Great for the North South Foundation Math Contest also by teaching students to think quicker on their feet.