The square can do more than a copy
You already know: one cell 1 dragged down → a copy of ones. Two cells 1 and 2 dragged → series 1, 2, 3, 4…
Sheets looks for a pattern. When it understands the pattern, it fills a series. When not, it copies.
After dragging, in the corner a small Autofill icon. Click — it offers copy or create a series. If it fills nonsense, choose Fill series.
Numbers 1 to 10
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Sheet
メモs. C11, C22. Select C1:C2. -
Drag the square to C10. You have 1…10.
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If everywhere
1, you selected only C1. Try again with C1:C2.
Weekdays again — faster
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PocketA2Mon, A3Tue. Select A2:A3. -
Drag to A8. Mon, Tue, Wed, Thu, Fri, Sat, Sun.
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A Czech account:
po,út→ po…ne. Not a mistake.
Odd numbers — step 2
D1 1, D2 3. Select both. Drag to D6. 1, 3, 5, 7, 9, 11.
Months
E1 January. Drag to E4. January, February, March, April.
A double-click on the square fills down to neighbouring data. When nothing is next to it, it fills thousands of rows. Ctrl+Z. Today rather drag with the mouse to a specific row.
Survey — numbering answers
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Survey. Next to snacks in column C: C31, C42— answer order. -
Or in column A you already have text — in column D numbers 1, 2, 3 for a chart later.
🏫 Grade average
One sheet, two columns: subject and grade. At the bottom a sum and an average.💰 Pocket money
Rows = days, columns = income / spend / left.📊 Class survey
One question, answers in one column, later a chart.🏆 Mini dashboard
Three numbers at the top and one chart. Numbers as a link, not copied by hand.Now you 💪
- You filled 1–10 from two pattern cells.
- Seven days on Pocket without typing each day by hand (or you fixed the pattern Mon+Tue).
- You tried an odd series 1, 3, 5 by dragging.
- You know that one cell = a copy, two cells = a series.
- After a bad drag Ctrl+Z or the Autofill menu.
Check: You fill a series with the square. You do not tap days and numbers one by one.
What to take from this lesson
- Two cells define the series step.
- Days, months, numbers — drag instead of typing.
- One cell = a copy of the same value.
- Autofill fixes a bad guess.
- A double-click on the square can fly off — carefully.
© 2026 Ing. Martin Polak / AlgoRhino · コンテンツ利用規約