CAMBRIDGE, Mass., Nov. 9, 2016 /PRNewswire/ -- John J. Xenakis, the creator of the latest version of the free Android app Xenakis MathGame, believes that students of all ages can use this tool to substantially improve their understanding of mathematics. The problem types for the lowest grades include: counting objects, number before and after, number smallest and largest, closest and farthest, simple expressions. The middle-level problem types include: word problems, ratios, percentages, sequences, probability, square/cube root, making change, areas, perimeters, volumes, right triangles, prime factorization, greatest common divisor, reducing fractions. The advanced problem types include: quadratic equations, simultaneous equations, isosceles triangles, power formulas, clock handle angles, x/y intercepts, imaginary and complex numbers, limits of functions, speed word problems, commercial word problems (e.g., tax assessment). The new version still preserves the popular feature that high school or other students can practice solving hundreds of problem types and subtypes for days, almost never seeing the same problem twice, since the parameters are randomly generated. Additionally, it now provides detailed explanations. A student who is stumped by a problem, or who wants a further explanation of anything from how to solve simultaneous equations to how to perform division by imaginary and complex numbers can bring up hints and explanations for further study and practice. A teenage girl stated, "This app was a big help, since I used it to practice math problems for two weeks before the exam. It added more than 50 points to my SAT score." A father wrote, "I sat down with my 8 year old daughter and helped her solve the first, second and third grade problems. This MathGame app helped my daughter to get an A in math class." Each displayed problem is assigned a grade level from Kindergarten to Grade 12, roughly following " Washington State K-12 Mathematics Learning Standards." However, one math education expert who has reviewed the game wrote that math education is so poor at the present time that "there are problems that students should be able to; unfortunately many cannot." Mr. Xenakis concludes from this comment that this proves why students should use the app. Students can supplement their mathematics skills to compensate for deficiencies that they experience in the classroom while parents of younger children can use it to enrich their learning. With the current trend of teaching students to use their digital devices responsibly, the Xenakis MathGame provides an additional resource for teachers who want to bring technology into the classroom. Apps such as this one can enliven a classroom and make learning fun.