In Microsoft Excel, which function is used to add up all numbers in a range of cells?
A=SUM()
B=TOTAL()
C=COUNT()
D=ADD()
Explanation
The `=SUM()` function in Microsoft Excel calculates the total sum of all numerical values within a specified range of cells (e.g., `=SUM(A1:A10)`). It is one of the most fundamental and heavily used built-in spreadsheet functions.
Exam Relevance
- Topic: Computer Fundamentals, Networking & Cybersecurity
- Subtopic: Hardware, MS Office, Protocols, Operating Systems & AI

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