Question

Find the missing number 620548-_______ = 129802

Answer 1

620548 - 490746 = 129802

To verify :
add up the two smaller nos. which will give the larger no.
490746 + 129802 = 620548

Answer 2

Let missing number be x
620548-x=129802
x=620548-129802               
   =  490746                                                 
So 620548-490746=129802