Transformed numbers from json cannot add

[Anonymous]

I have some json data which i transformed into rows. Whren I use these values (they are numbers) I dont hve option to sum them up. How can I figure out what is going on with it?

[Anonymous]

 thanks so much! this was so obvious and yet I spent ages on it!

[johnt75 · Accepted solution]

Click on the ABC123 at the top right of the column and change the type to one of the numeric types.