11
ten times
19.
20 times if you're counting by ones.
That looks like it should be the same as 10 times (the number of times the digit 1 occursin the units place in the numbers from 10 to 100), which would work out to 90 .
20 times
11
ten times
19.
20 times if you're counting by ones.
The number 7 occurs once. The digit 7 occurs 20 times.
That looks like it should be the same as 10 times (the number of times the digit 1 occursin the units place in the numbers from 10 to 100), which would work out to 90 .
10 times for the one's digit, 1-100 10 times for the ten's digit, 60-70 = 20 times
100 times greater.
19 times.
11 times
Twenty times.