PSAT math interactive book

This new application consists of 348 new exercises. Hundreds of math questions in both multiple-choice and grid-in formats with worked out solutions. The only app for the new PSAT with Student - Produced Response (grid-in) exercises.
!!!!!!!!!! The ultimate interactive book !!!!!!!!!!
Here you can find an intensive preparation for the new PSAT's all-important Math section, and a valuable learning tool for college-bound students who need extra help in math and feel the need to raise their math scores.
Only with this app you can prepare in a smarter way. Includes full theory in 32 lessons and over than 200 examples.
This app for the New PSAT provides you with everything you need to improve your Math score - guaranteed. 23 years of experience and a unique approach have led to the ultimate product that outdoes any other new PSAT prep book or application.
There are 348 exercises as follows:
Heart of Algebra: 112 exercises
Problem Solving and Data Analysis: 112 exercises
Passport to Advanced Math: 98 exercises
Additional Topics in Math: 26 exercises
Students can access all exercises of the app in a lot of ways:
A: exercises & solutions - by chapter
B: exercises & solutions - by category
C: play & learn - by chapter
D: play & learn - by category
E: as a TEST with 48 questions
F: as a TEST with 25 questions
--> 348 practice questions with expert explanations in 32 chapters or 12 categories
--> full theory with over than 200 examples
--> the only app with student - produced response exercises (grid-in)
--> practice on each chapter separately - play & learn
--> a different test for each student.The test questions are selected randomly from the 348 exercises,
--> this app generates millions of different tests,
--> you can save the test as a .bmp file
--> millions of ****** printable ****** tests
--> you can save the answers of the test as a .bmp file
--> see the scores and subscores immediately
--> save the scores as a .bmp file
--> use the chronometer to control your test time
--> test with 48 questions (following the specifications of the new PSAT math test)
--> test with 25 questions ideally to be taught in a teaching hour. Try to finish it in 37 minutes
--> you can go back and change your answers
--> you can see the solutions in portrait view or in landscape view
***** text books can not do all these *****
***** the best, smartest and cheapest way to practice for the new PSAT math TEST *****

The application presents only my point of view for the whole syllabus. Exercises have emerged from twenty-three years of experience in teaching of Mathematics.
The application works on smartphones and tablets android of various sizes and screen analysis (from 240x320 and up). Visit our blog:
http://i-math-apps.blogspot.gr/
for more details, suggestions or comments.