Question 1135924
<br>
There is no magical formula for finding the answer to a problem like this.  You just need to count (carefully!) the number of zeros you use when you write certain numbers, and find when that total reaches 100.<br>
I'll get you started; you can continue the pattern to find the answer to the problem.<br><pre>
    numbers written   # of 0's  total # of 0's to this point
  ------------------------------------------------------------
     10 to 90           9          9

     100                2         11
     101-109            9         20
     110-190            9         29

     200                2         31
     201-209            9         40
     210-290            9         49

     ...
     ...</pre>