For convenience "ver2.0" rather than "ver. 1.539" and I was naming.
・ "Clear" Add button
→ The mistake you can correct when you enter.
Show correct answer to, incorrect answers (under the answer column)
→ You can be solved was not a problem from the solution immediately.
(Order to clearly Did why mistake)
※ At first you feel short display time,
and become more comfortable and come feel just good speed.
・ Increased number of problems than the "Calcul"
→ Question number: 174 questions
(All the questions answer time: about 50 minutes)
※ I can not still all the questions answer within 50 minutes.
・ Ramdom questions of problem
→ What time began and will appear on the exam is also different problem.
・ Previously, in which the finished-interrupt the game, displays the best results.
→ The display below the existing current performance.