My Nemises of Quant

It is good to know how your mistakes are made. Quantitative practice with the clock cearly brings out the questions where I need to check twice. They are,

1. Arithmetic Operations : I add and multiply small numbers wrongly : I got 28 x 3 = 78 !! How? !!
2. I should be careful with questions involving ratios. I have a tendency to go in a wrong direction while solving. I must write down all steps. Skipping steps create problems.
3. Do not start off solving without a plan.