Copying data from one class to another

I would like to be able to copy my data from one class to another.
I did not set up my classes properly. I want to change a class to a tab in a class. (My example is I would like to make my patterning class a tab in mathematics)

Is this possible? I can copy the columns to math but I can't copy the data.

Any help would be appreciated.

Hello trixy29,
You will be able to copy data to another class if the student names match.
Please try this with a single column:
Tap and hold on a header > Copy > Make sure you enable the 'Copy cells' option and 'Copy annotations' and then select 'To another class'
If this works then Tap and hold on a tab > Copy > Select your target class

Regards