Press ENTER or TAB to next question.
Sample Questions
10 + 0 =         
20 + 0 =         
30 + 0 =         
40 + 0 =         
50 + 0 =         
60 + 0 =         
70 + 0 =         
80 + 0 =         
90 + 0 =         
100 + 0 =         

Setting:
Digit: , Question: plus minus times Show Question First
Passing query string Digit(d), Total Question(q) or Math symbol(s) "plus", "minus","times" to increase the difficulty.
Eg:
  1. Digit till 999, 20 questions and Symbol equal times. index.html?d=999&q=20&s=times
  2. Digit till 10, 20 questions and Symbol plus and minus. index.html?d=10&q=20&s=plus,minus
Concept:This simple calculation is just to train your brain for calculation that we almost forget.