The same chain of woes is appearing in other nations. Now comes an effective, simple solution. If you have used a calculator, there is no need to check your work. Your answer, if you can give a good explanation for it, is correct. One must move on.
Life is too short to spend it agonizing over whether one passed an examination.
This decision is an example that others will admire and learn from. Fear of making a math error has paralyzed too many young people, causing them to lose their love of mathematics. Without that fear, students can exult in mathematics. As they take their place in society, it will become ever less fashionable to check one's math. The Word on Collapsed Toilets Gordon McNaughton has granted an interview to the BBC, in which he gives a splendid account of what it was like to win an Ig Nobel Prize.