The questions are random. The first time i played it was really hard with all 3 + digits. got 14/20. after that i got easier ones and was able to get 20/20
46 seconds left. There should be some kind of feature showing the percentage of people who finished faster than you because a lot of people will have got 20/20
Add more questions, 20 is far too easy. Put 50 in or something, a lot of people would struggle to reach it but at least you can improve your score that way, getting to 20 isn't a challenge.
I'm a member of mensa, I hold the Guinness world record for memorization of random objects, and Stephen Hawking frequently seeks me out to proof read his papers on quantum physics. Isn't the Internet wonderful? You can make up anything about yourself, eh ghost rider?
I think a few more problems could be added or a little time taken off. I know it's random and not everyone is going to have multiple problems that had a 1 digit number in them like I did, but the average score is 16/20 so a lot of people are finishing this easily.
Another good quiz, for those jetpunkers that like to think, try 'The CHALLENGE' a puzzle-quiz to get you thinking for a while at ... ... http://www.jetpunk.com/user-quizzes/120558/the-challenge
26 seconds left. Tricky for me - I added columns right to left (as we were taught in school). But when I tried to invert the numbers to type them in (left to right, as required by our stupid computers), I invariably messed up the order, confused myself thoroughly, and had to re-do the addition. Ack! LOL Nice challenge!
Some challenge, please! :)
Anyway, 100%, 56 seconds left.
Finished 11 sec before
Missed out on an opportunity there, Quizmaster
https://www.jetpunk.com/user-quizzes/151400/subtraction-quiz
2+2=4
-1= ?
still have 3 question
Honestly, addition and multiplication are easier as a category compared to subtraction and division.
I got all with 0:16 left, on my first try.
I was using my laptop numpad & watching a yt video in split window. I wasn't rushing at all, and made >3 mistakes.
I have finished calculus, but don't consider myself particularly bright with math - C+/B range.