Reply To: The Riddle Thread….

I can only try

0 = 2*0*0*9

1 = 2^0+0*9

2 = 2+0*0*9

3 = 2*0*0+?9

4 = 2^0+0+?9

5 = 2+0+0+?9

6 = (2+0+0)*?9

7 = -2+0+0+9

8 = -(2^0)+0+9

9 = 2*0*0+9

10 = 2^0+0+9