Error: The formula =SUM(B2B3) is syntactically incorrect. Excel doesn’t recognize 'B2B3' as a valid range. Correct Format: Use =SUM(B2:B3) to add the values in cells B2 and B3. Steps to correct:
1. Double-click the cell with the formula.
2. Replace B2B3 with B2:B3.
3. Press Enter to apply the correction.
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