There are 45 of them.
The answer depends on what the tens digit is greater than, and what the ones digit does then.
-3
4
It is 9 times greater.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45 (10,20,21 etc etc)
91
How about: 11, 13, 17, 19 .... etc
Is it only 890 and 891
Since cents are only in whole numbers, you look at the digit directly to the right of the ones digit. In this case, it is a 7. Since that is 5 or greater, the ones digit is rounded up. The answer is 16 cents.
23
16
8 of them.