There are many possible answers. One pair is 94 and 0.257: added together.
The two numbers multiplied are 12*12, 1*144
the two numbers to equal 16 is 4 and 4.
293
.25+.25=.5
13 and 7
The sum of two odd numbers never makes an odd number. Only the sum of an odd number and an even number makes an odd number.
The two numbers are 6 and -5. 6 x (-5) = -30, 6 + (-5) = 1.
67 and 5
2 and -3, added together.
Because both numbers have more than two factors which makes them composite numbers.
23 is odd. A sum of two even numbers never makes an odd number. Likewise, no sum of two odd numbers makes an odd number. 23 can only be made by adding an odd and an even number.
Only their no of protons in nucleus (atomic numbers)