» Ignoring Blank Cells when Performing Calculations
Columns A & B contain numbers as well as empty cells.
We want to be able to multiply each number in column A with the matching number in Column B without getting false results or errors.
Use IF, AND and ISNUMBER functions in the following formula:
=IF(AND(ISNUMBER(A2), ISNUMBER(B2)),A2*B2," ")
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