refer to the cell in a dynamic range

[javier44]

I want to know all times this one presents the number 3 in the last 10 cells of the A column
For a static range I use this function
= COUNTIF(OFFSET(A16;-10;0;COUNT(A:A));3)
If I add a new cell which is the function for a dynamic range?
I can refer to the cell with this function = ADDRESS(MATCH(300;A:A);1)
but not as integrate it

 

[GlennUK]

Please rephrase your question ... it doesn't make much sense to me.