Why your SUM is wrong

Find why a SUM total doesn't match: numbers stored as text, a range that stops short, hidden rows or a total typed by hand, and fix each one.

Confident · 10 min · 10 steps

In this lesson

  • SUM skips text without a warning.
  • Fix text numbers by retyping them, or with =VALUE(cell) in a helper column.
  • A range doesn't grow when you add rows below it. Click the total and check where the range ends.

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Remove duplicates

Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.

Confident · 9 min · Free, with no sign-up

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Skill
Errors and debugging
Stage
Confident
Paths
Reports that don't breakClean up messy data

Where it sits in Errors and debugging 4 lessons

The steps

10 steps: 2 explanations, 4 Do this, 4 questions, then Your turn.

Try a free lesson first

Remove duplicates

Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.

Confident · 9 min · Free, with no sign-up

Do the free lesson on your computer.

Send yourself the link and open it on a laptop or desktop.

On your computer, go tolearnford.com/go/BV7C