How do I use a Number Variable in the thing where you can type something and get results (example: GlobalVariableString(Variable) )

Please help me, I need to do this quickly for a game jam.

did you mean converting number to string(use ToString(number) to convert to string), or string to number (ToNumber(string))

Number to string probably… Thx

You can get the string and numeric version of a number variable by using Variable(<varaible_name>) for the number version, and VariableString(<variable_name>) for the string version (or the GlobalVariable and GlobalVariableString)

I suggest you to save this link
http://wiki.compilgames.net/doku.php/gdevelop5/all-features/expressions-reference