Do math on a series of cells of a Google doc table. There is a regular calculator so you can do all your math right within the doc
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Overview
Do basic math/stats operations on a series of cell values in a Google Docs table and insert the result with the click of a button. 

=>Operations include addition, multiplication, average, count, max, min and standard deviation
=>Works with currency symbols of several countries  
=>A bonus regular calculator 
=>Works for both US (period) and non US (comma) separators for the decimal system 

Stay within Google Docs and do all your simple math, no need to get a separate calculator or use a spreadsheet.
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Craig
June 17, 2026
This used to be good. But it doesn't appear to be working any more when you click on extensions - GTable, only help is there now
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Jess Smirthwaite
July 1, 2026
A useful tool but sadly it is no longer working. You cannot launch it any more. Only the help option is available.
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Thomas Bland
June 15, 2026
This used to be good. But it doesn't appear to be working any more
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Heather Walker
October 28, 2025
Can see the value for some purposes, but unfortunately not for what I need - as there's no auto-update. What I needed it for was creating a table that would automatically update the totals when people changed the values in the table. Even if there was an 'update now' button or something that needed to be clicked after the values had been updated, that would be great. (This is something I think Google should be doing themselves rather than needing an add-on for, so thanks for the first step!).
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Cynde Contreras
June 23, 2026
Used this regularly, but doesn't appear to work anymore.
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Kyle Taylor
November 6, 2024
I like it! It's very helpful. What would be awesome, though, is if there was a way to just have the calculator launch automatically when opening a particular Google doc. I have a Google doc that I use as a template, and I always have to manually launch the app every time I need it. Not a huge deal, but if we could create that setting, that would be awesome!
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PAASCU REP
July 14, 2026
Not Working.
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Sheree Cadarette
January 12, 2023
This was a very great add-on, this helps with doing hard math questions, I mean it's a bit cheating but still great. I also really like how you can insert numbers easily, good job!
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Shakil Taz
October 30, 2024
GOOD
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Mark Fitzgerald
March 28, 2023
Does exactly what I hoped it would do. Thank you very much. Would love to be able to select the format of the calculation i.e. currency but that is a small thing.
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