83 A+
45
The number is 36
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
after 11yrs.
27
83 A+
19
45
The original number is 58.
To total 17 the two digits must be 8 and 9! The original number was 98.
45
45
45 and 54
The original number would be 28. Swapped around, the number's digits are 82. The difference between the two numbers is 54.
39
98 and 89