First magnify  numbers form 0 to 9 in special functions  next  request user to enter this form of numbers(for example: 2+5=) then after magnifying the example magnify the answer of that form of example(7) too. 
 
for Example:
 
 magnify  2+5= by refer magnify functions 
then magnify 7 too.
 
 | 2 | 2 
 | 2 | 2 
 |  |  |  |  |  | 5 | 5 
 | 5 
 | 5 
 | 5 
 |  |  |  |  |  |  | 7 
 | 7 
 | 7 
 | 7 
 | 7 
 | 7 
 | 7 |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 | 2 | 2 |  |  |  |  |  | 5 | 5 
 | 5 
 | 5 | 5 |  |  |  |  |  |  | 7 | 7 
 | 7 
 | 7 | 7 | 7 | 7 |  |  |  |  |  |  |  |  |  |  |  | 
|  |  | 2 | 2 
 |  |  |  |  |  | 5 | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 | 7 | 7 
 |  |  |  |  |  |  |  |  |  |  |  | 
|  |  | 2 | 2 |  |  | + 
 |  |  | 5 | 5 
 |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 | 7 
 | 7 
 |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 | 2 | 2 
 | + | + 
 | + 
 | + 
 | + 
 | 5 
 | 5 | 5 
 | 5 
 | 5 |  | = | = 
 | = 
 | = |  |  |  |  | 7 | 7 
 | 7 |  |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 
 | 2 | 2 
 |  |  | + 
 |  |  | 5 | 5 
 | 5 
 | 5 
 | 5 
 |  | 
 |  |  |  |  |  |  | 7 | 7 
 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 |  |  |  |  |  |  |  |  |  |  | 5 
 | 5 
 |  | = 
 | = 
 | = 
 | = 
 |  |  | 7 | 7 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 |  | 
 |  |  |  |  |  |  |  |  | 5 | 5 |  |  |  |  |  |  | 7 | 7 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 | 2 
 | 2 |  |  |  |  |  | 5 | 5 | 5 | 5 | 5 |  |  |  |  |  | 7 | 7 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 2 | 2 | 2 
 | 2 |  |  |  |  |  | 5 | 5 | 5 
 | 5 | 5 
 |  |  |  |  | 7 | 7 | 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |