Hi!
So,To calculate the number of zeros in the square of 400 first step is to multiply:
400 × 400 = 160000
Second step is to count the zeros.As I can see there is four zeros in the number 160000 at the end.
Hence, The number of zeros in the square of 400 are 4.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile