51.0, how many integers are there.

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.

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.

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

To determine how many integers are there after the decimal point in a given number, you need to examine the digits after the decimal point and consider whether each digit is significant or not.

In the case of the number 51.0, the digit "0" after the decimal point is not considered significant since it does not change the value of the number. Thus, there are no integers after the decimal point in this case.

Similarly, in the number 0.004, there are three integers after the decimal point: 0, 0, and 4. Each of these digits holds its own place value. Therefore, the number of integers after the decimal point in the number 0.004 is three.

Next, let's look at the number 10.004. In this case, there are five integers after the decimal point: 0, 0, 4, 0, and 0. Each significant digit contributes to the overall value of the number. Hence, the number of integers after the decimal point in the number 10.004 is five.