Multiple choice

If 1 + 1 = 0 2 + 2 = 2 3 + 3 = 24, then 4 + 4 = ?

  1. 345

  2. 252

  3. 246

  4. 48

  5. 35

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The series is nn - n. Putting n = 4, we get 252.