I am creating several numerical questions, usually with multiple answers of different type.
I just started with a set of pH calculations that include the calculation of a logarythm (decadical, lg) for the teachers answer. But no matter what i do, whenever i check the correct answer in the preview i get "-lg(x)" (where x was calculated correctly and represents some value), but I want a Number!
float which results in the whole formula being shown, and i tried
radcan to simplify.
If i calculate the logarythm and insert it as answere it is not recognized as correct (even lg(100)=10, so its no preciseness issue)
Can someone please give me a hint what to try next?