10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 31, 41, 51, 61, 71, 81, 91 = 19 (1s)
It appears 25 times.
67 times
300 times.
As a digit in other numbers it appears 20 times
Zero. Only the digits 5 and 0 appear in 500.
30 times because when you count up in tens this is the answer
19 times.
11 times
11 times
300
Including the one in ' 1 ' and the one in '100', there are 21 1s.Every other digit 2 - 9 appears 20 times between 1 and 100 .
10 times for the one's digit, 1-100 10 times for the ten's digit, 60-70 = 20 times
Between 1-100- 11 zero's- ie., 10,20,30,40,.... 100... so 11*10=110
15
200
200
16