Hii guys I had a very general question
I took few mocks and the problem I’m facing is

misreading the question:
Example if the questions asks me to solve a quadratic equation and to find the values of x3 or something similar I would find the roots and simply select the value of x instead of subtracting 3 and after the test when I review it I find that I have committed a silly mistake 
Calculation error:
Like missing 0 or simple math calculations like sometimes I take 6*8 as 56 instead of 48 unknowingly or something similar
How should I avoid commiting these mistakes do you guys have any tips ?