108,117,126,135,144,153,162. 171, 180
108 117 126 135 144 153 and 162
1, 3, and 5.
In base 10, all numbers whose last digit is a 5 or a 0
They belong to a set of numbers whose first digit is 8. There are 720 such numbers and I regret that I do not have the patience to list them all.
108,117,126,135,144,153,162. 171, 180
Ten.
There are 5460 five digit numbers with a digit sum of 22.
108 117 126 135 144 153 and 162
1, 3, and 5.
The numbers are 28 and 29.
In base 10, all numbers whose last digit is a 5 or a 0
450.
715 and 777
They belong to a set of numbers whose first digit is 8. There are 720 such numbers and I regret that I do not have the patience to list them all.
-21
69