More Efficient Way to Avoid Multiple Calculations?

问题

I have a lot of these chains in my sheet. Is there a more efficient way than what I am doing?

https://docs.google.com/spreadsheets/d/1sm1WLL6CJHckeUE1eyZQSG4CRb35UVxOb1Ymwtf6Yj8/edit?usp=sharing

=$A$2+5
=$A$2+15
=$A$2+20

etc.

It there a single formula or more efficient one that may reduce calculation time?

回答1:

try like this:

=ARRAYFORMULA(ROW(A1:A20)*5+A2)

来源：https://stackoverflow.com/questions/57979532/more-efficient-way-to-avoid-multiple-calculations