Common.
I would say you are exceptionally strong in Math skills or perhaps, even gifted in math, depending on your test scores.
eight plus four is twelve. simple maths
Yes. Maths background is necessary for doing graduation in economics.
Depends on what standard engineering you're doing. If it's University engineering, consider doing A level maths If it's college engineering, consider doing Gcse/As level maths.
maths
You add them together and divide them by two.
If you keep learning them.
either be naturally gifted or talent in maths be a serious and dedicated student ask teachers for help when needed do past papers do independent studying or if all else fails.....get a tutor!
Usually none.
By doing all the homework and studying.
by doing math
Yes