Mental Math Notes is a printed version of the skills in the Mentor for those who prefer to ferret information from a book. Our Mental Math products are in a self-paced tutorial format which is a collection of exercises, examples, short-cuts, and skills for use in the Number Sense contest. Some 70 skills are presented clearly and logically with problems generated for each to test your students' understanding. Mental Math Mentor and Notes are also available for purchase in a set.