Result: success
Time taken: 7 minutes
Question:
6+4=210
9+2=711
8+5=313
5+2=37
7+6=113
9+8=117
10+6=416
15+3=1218
??+?? =123
Reflection:
At first I spotted that the digit/digits on the right were the sum of the two numbers.
Then I realized that the first digit/digits was the difference between the two numbers.
Then it was just a case of finding two numbers that added up to 23 with a difference of 1.
Which was 11 & 12
Thomas Duggan 