I am trying to set up simple chemical calculus question, with some random numbers in variables and expressions.
Although I added float(...) attributes to variables, I am still getting warning:
"This answer is invalid. Your answer contains floating point numbers, that are not allowed here. You need to type in numbers as fractions. For example, you should type 1/3 not 0.3333, which is after all only an approximation to one third."
Please how do I make all variables, including in random lists, as float ?