50
42
58
50
They could be: 64 and 36 because 64+36 = 100 and 64-36 = 28
50
42
54
23½ and 39½
58
50
They could be: 64 and 36 because 64+36 = 100 and 64-36 = 28
-691
154
151
6+6=12 12-8=4
two prime numbers when added together will equal 63: 2 + 61