Multiple choice general knowledge

Kelly made a list of all the whole numbers between 1 to 100. How many times did she write the number 2?

  1. 20

  2. 19

  3. 18

  4. 21
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The digit 2 appears 20 times between 1 and 100: once in the ones place (2), once in the tens place (20-29), 10 times in the ones place for 20-29, and 10 times in the tens place (20-29). Wait - counting systematically: 2 (1), then 12 (2), then 20-29 (11 times for 2 in tens place, plus 2 in units for 22) = 2, 12, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 32, 42, 52, 62, 72, 82, 92 = 20 total.

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