-66
79
-1540
-8 and -15
Two (or four) digits added together cannot equal 42. Two-digit numbers multiplied together cannot equal 82.
Two Numbers consisting only of ones that when multiplied or added equal the same number are 11, and 1.1
The numbers are 1 and 10.
10
266
79
99
-1540
6 and -5
-66
-8 and -15
-3, -6
15 and 8
Two (or four) digits added together cannot equal 42. Two-digit numbers multiplied together cannot equal 82.