Bevz was a huge fan of mental math. If your textbook has "oral" sections at the start of a chapter, do them! They are designed to "warm up" the logical part of your brain so the harder problems feel less intimidating.
Moving beyond simple integers into the "irrational" world. domashniaia zadanie avtor g.p.bevz 8 klass htit ybr
Learning the formulas that will follow you all the way through university. Bevz was a huge fan of mental math
Dealing with circles, triangles, and the ever-present Pythagorean theorem. Survival Tips for "Domashniaia Zadanie" domashniaia zadanie avtor g.p.bevz 8 klass htit ybr
Бевз Григорій Петрович - Вікіпедія