I don't know the error

[LS1]

Hi
When i run this program ,i enter in the blank 1(because the other is not active yet) then press start, then 10 question of two diffrente random number will appear , i have to enter the sum answer in the blank then i have to check it with the correct answer then print true for true answer or false for wrong one (just for know to check every thin is ok),but every time i enterd the answer it print false even if it true........it makes me crazy....could any one look at it and tell me the error and the poosible solution for it
please help me