This link will take you to a clever little trick, see if you can figure out how it's done!!!!!!

Took a couple of goes, but yeah, it's actually pretty simple.

Cheers.

Seems pretty clever first time. But after couple of goes, you fugure out. The answers will always be a number divisible by 9 - like 9,18,27,36..... Those symbols, although changes every time, are always the same.

But that's probably because I can't multiply anymore, have difficulty with my log-rythum, my  Greek never had alphabetical letters, I have arthuritus in my right fist and can't add past my left hand, and I have problems focusing on the screen after I take my meds.  But I was close, I think.

Cute, quite an easy trick though.

First you take a random 2 digit number 10 - 99.
next you add the 2 digits together and subtract from the original. There are only 9 posible answers: 9, 18, 27, 36, 45, 54, 63, 72, 81,
10 - 19 will equal 9
20 - 29 will equal 18
30 - 39 will equal 27
40 - 49 will equal 36
50 - 59 will equal 45
60 - 69 will equal 54
70 - 79 will equal 63
80 - 89 will equal 72
90 - 99 will equal 81
Now the same image is next to these 9 numbers all the time.

There are only nine possible correct answers to the math part, 9,18,27,36,45,54,63,72&81. When you get the the symbols page, those nine numbers all have the same sign. When you do it again, the program changes the sign & puts it under all nine of the possible right answers. Simple!!!!!!!!!!111