Multiple choice general knowledge math & puzzles

2*2 = 4 and 4/2=2 every number multiply by itself and divide by the same initial number we will get the initial number. But not one number which one from the following?

  1. 0.001

  2. 0

  3. 0.16

  4. 0.0016
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For any non-zero number n, n×n=n² and n²÷n=n. This works for all non-zero numbers including decimals (0.001, 0.16, 0.0016). However, 0×0=0, but 0÷0 is undefined (division by zero is impossible). Therefore, 0 is the exception.

Keep practicing — related questions