1
10
11
12
13
14
15
16
17
18
19
21
31
41
51
61
71
81
91
100
There are 21 "1s" between 1 and 100 including 1 and 100.
312132 or 231213
1 x 10 x 10 x 10 x 9 = 9000 1 = it must be 2 10's = any digits 9 = any digit BUT zero
100 divided by 4 = 25. There are 25 4's in 100.
Do you have a number you want to round? Look at the 100's digit ( the second to the left of the decimal point). If it is 5 or more, add 1 to the thousands digit (the next one to the left). Now replace the tens and units digits with zeros (and drop any numbers after the decimal point).
2.3 recurring
you can image the 3 digits as a counter 0 0 1 0 0 2 ... ... ... 9 9 8 9 9 9 every digit uses 100 times a 6..... 100*3 digits = 300 sixes :)
11
there are 100 1's in 100.
There are 116 1s in the first 1000 digits of pi.
100
all of them are in there
-100 all the way to -999
312132 or 231213
It has 1 followed by 25 0's.. therefore in total there is 26 digits
100 100's in 1 inch1000 100's in 10 inches
its 20.
11