Do you like making careless mistakes in tests and exams? Here are some careless mistakes that I've made in my most recent math test. 1) In an integration problem, there were 2 parts. We had to find a reduction formula in the first part and apply it in the second part. Part a ) In= (c-b2)...... In= (c-b2)...... In= (c+b2)...... In= (c+b2)...... part b) I used a wrong reduction formula deduced in part a =5 marks disappeared 2) 0/(1+1) = 0/1 = 1 mark was lost 3) another integration problem, to integrate a rational function and I applied partial fraction. 1/(x3+8) = 1/([x+2][x2-2x+4]) = 1/([x+2][x2+2x+4]) = I lost another 5 marks more than 20% of the marks were lost due to careless mistakes ! I made lots of careless mistakes in many other tests too.