Introduction - If you have any usage issues, please Google them yourself
An addition speed test program, the user clicks the " Start" button, start the timer, and 1,2, respectively, in the text box and display the addend and the randomly generated summand, the user entered in the text box 3 answers, press the Enter key After the program instructions in the back of the answer right or wrong, and shows the next problem. A minute later the number of procedures and the statistics against a number of questions. The user clicks the " Finish" button to exit the program.