how many possible ways to make the number 25

how many ways  can you think of that can make 25?

here are some of my answers

5x5

9+16

5+20 

30-5

60-35

35-15

15-10

55-30

31-6 

100-75

75-50

7+18

65-40

40-15

45-20

110-85

120-95

And there are the most obvious ways that I can think of  that can make 25

can some people comment in some other ways that I can make 25?

The most obvious ways are like 5x5 5+20 7+18 9+16  60-35 and 30-5.