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Unicus Olympiad Exams

What is the smallest three-digit number?

  • The smallest three-digit number is 100.
  • It is the first number that has three digits: one, zero, and zero.
  • Before 100, the biggest two-digit number is 99.
Examples:
  • Counting pages in a book:
    • In a book with 100 pages, the first page number with three digits is 100.
    • So, the book starts from 1 and goes to 99, then to 100.

  • Buying toys:
    • If you want to buy toys and have 100 toys, that is the first group with three digits.
    • You start from 1, 2, and when you get to 100, you are at three digits!

  • Counting stars:
    • If you wish to count stars and you count up to 100, that is your first three-digit number.
    • Before that, you just count single and double digits like 1, 2, 3...

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