That would be all of the numbers between 30 and 39, so ten of those, as well as one number for every other multiple of ten less than 100 and greater than 9: 13, 23, 43, 53, 63, 73, 83, 93, which gives us nine more. The grand total then is eighteen.
172
-2
17
There are 175 such numbers.
-5
172
18.
-2
17
1
There are 175 such numbers.
-5
252
greatest two digit number is 99. smallest whole number is 0 there fore 99-0=99
the answer is = first 2-digit number by using 48= 28,82 and in 3 digit is=282,228,822,822
No. When adding the smallest 2 digit number (= 10) to the smallest 2 digit number (again, 10) the result is a 2 digit number (10 + 10 = 20). When adding the largest 2 digit number (= 99) to the largest 2 digit number (again, 99) the result is a 3 digit number (99 + 99 = 198). As you can see, you'll either get a 2 or 3 digit number, but never a 4 digit number.
It would help to know which digit. 0 appears in 9 numbers and each of the others in 18 numbers.