There are an infinite number of solutions, including 1900 + 64, 1960 + 4 and 1963 + 1
4-6=2x9=18 divided by 2=15
you can make at least 25 sums
all the sums are 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,and 24
Well, 1 is equal to 1. 9 is equal to 9. So any number from 0 to 9. I do not think this is what is meant by the question. If you mean any number with more than one digit. There is no such number. Because 11 sums to 2. 19 sums to 10. 21 sums to 3. 29 sums to 11. 111 sums 3. 119 sums to 11. The sums do not grow as fast the increase of digits.
Add all the sums, then divide by the number of sums. (ie. the average.)
Average Function
Tobbacco saved jamestown causing it to make large sums of money.
An infinite number.
average function
Said number squared.
Average Function
Average function