Is the procedure for obtaining standardized residuals the same ?

The PhD student who leads the module labs provided me with answers to a practice problem for goodness of fit :

Observed Expected Residual (O-E)_ (O-E)_/E

2965.814 2472.822 222.992 49725.43 20.10878

then in the next column I see:

(O-E)_ ---- whatever the heck that means - I thought we needed standardized residuals ? which are obtained by = Residual/SQRT(Expected)

Wouldn't I want to = 222.922/SQRT(2472.822)

I don't see where the 49725.43 is coming from.

That is what would be done in a independent / "normal" chi square. Am I off ? Or is the GTA being thick ?

If needed, I can gladly provide the rest of the data series.

Thanks!