I Cultivated to Become an Immortal in a World Where Mathematics Is Locked

Immortal Master, I asked you to calculate the area of ​​the formation. Do you think π is equal to 3? Fairy, your long-range spells don't count as gravity acceleration? Lord Shen, you are carving a right triangle in your craft, but you don't know the Pythagorean theorem? Lord Dao, you have this spherical artifact, but you don't know how to calculate the volume of the sphere? Madam, you want to break through this cave, but you don't understand calculus? Being transported here, Luo Shu, am I here to save this poor mathematics level? Sorry, I will take the first step on the road to immortality!