getting info from one worksheet to another

[Kat]

this may seem like a simple question, but is there a way to use the info from
one worksheet with a formula on a different worksheet? For example the data
I have is on Sheet1 and I am trying to make a data summary on Sheet2 do I
have to do all the formulas in Sheet1 and copy them or can I do the formula
on Sheet2 and reference the data? If I can, how?

 

[cm]

if the cell in sheet1 is D2, on sheet2 enter =Sheet1!D2

 

[Kat]

I have that part... I guess what I am wondering if I can do =Sheet1! followed
by a formula like =SUM(D420) and get results.

 

[cm]

use this way:
=SUM(Sheet1!F16:F19)

I have that part... I guess what I am wondering if I can do =Sheet1! followed
by a formula like =SUM(D420) and get results.