They could be: 2+2+2+6+8 = 20
23
-358
-22
80+20 (and) 80*20(* means times)
62
They could be: 2+2+2+6+8 = 20
20+20+20+10+2+2+1=75
How about: 20 and -2
62
7 + 13 = 20 Note that there are no two prime numbers x and y that multiply to 20.
-10/1, or +20/(-2)
23
The numbers are: 80 and -20
2 and 10 or 4 and 5
-358
-22