Advent calendar 2019
1 December
If you write out the numbers from 1 to 1000 (inclusive), how many times will you write the digit 1?
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100 numbers will have 1 in the units column. Another 100 with have a 1 in the tens column; and other 100 will have a 1 in the hundreds column.
Finally, 1000 has a 1 in the thousands column.
In total, this makes 301 copies of the digit 1.
