Multiple choice general knowledge math & puzzles

square of 103

  1. 10309

  2. 10609

  3. 10909

  4. 10949
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The square of 103 is $(100 + 3)^2 = 100^2 + 2(100)(3) + 3^2 = 10000 + 600 + 9 = 10609$. Option 10309 is a common mistake where the middle term of the binomial expansion is omitted.

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