122, 212, 221, 311, 131, 113, 140, 410.
None. The sum of one digit can't be twice the size of the digit.
none
-3
30,25,15,20, or 10.
63
There are five such numbers.
There are 5460 five digit numbers with a digit sum of 22.
None. The sum of one digit can't be twice the size of the digit.
none
Only one . . . 999 .
-3
what is the least possible sum of two 4-digit numbers?what is the least possible sum of two 4-digit numbers?
2,4,6,8,10,12,14,16,18
30,25,15,20, or 10.
63
two consecutive 4- digit numbers have a sum of 9173.what are the numbers?
2222