51.0, how many integers are there.

Question

I know that there are three in 0.004.
I also know that there are five 10.004.
But I don't remember if the 0 after the . counts or not.

Answer 1

It looks to me like you the question is really asking for the number of "significant figures", not the number of integers or digits.

0.004 has 1 significant figure, the "4"
10.004 has five signficant figure (all five presnt). Start with the first non-zero figure on the left and add the number of additional digits to the right of it, no matter where the decimal point is.

Answer 2

Hmm maybe I took the notes down wrong...but thank you.