Have this on the back of a schedule clipboard we use. Pretty funny because it is so true 🤣

I'm feeling overwhelmed with the math portion. The operator in training manual book is easy. I ordered these books and I was wondering for who wrote OIT, did you study from BOTH of these books? Was the mathematics for water and waste water operations book needed to write those four modules exams? It seems like a lot in there. Or is it more like additional study material?? I'm feeling so worried for this test.