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Start challengeSUM and AVERAGE are the two formulas you'll use most in Excel and Google Sheets. Both take a range of cells (like A1:A10) or a list of cells separated by commas.
Example · SUM
=SUM(A1:A10)
// adds every number from A1 to A10Example · AVERAGE
=AVERAGE(B2:B6)
// returns the mean of B2 to B61. Which formula adds the numbers in cells A1 through A10?
2. What does =AVERAGE(B2:B6) return?
3. How do you average only the cells B2, B4 and B6?
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