counting instances of decimals

I'm trying to count how many times a number appears in a column. Easy enough. The catch is the numbers are 3 decimal places out and I want all the numbers starting with a certain tenth digit. So I want to know 4.001, 4.002, 4.003. I just need one count though, so I want to know how many 4.xxx's there are in a column.

Please help!

u need the DCOUNT function I think. for example, if these numbers are in the range A1 to A10, you'll need A1 to have a heading eg 'Numbers'. Then goto where there are some spare cells for example G1 and H1 type the same title (eg 'numbers') and in G2 type >3.9 and in H2 type <5. then your formula will be
DCOUNT(A1:A10, A1, G1:H2)
DCOUNT(DATABASE, TITLE, RANGE)

it will then look in A1:A10 to see how many cells meet the criteris set in G1:H2, that is how many cells have a number greater than 3.9 but less than 5.

hope this makes sense, although there may be an easier way?