Quantitative | Re: Help more method for quant

Hi guys I just took my 2nd MGMAT CAT and the quant felt absolutely awful I felt panicked and approached things with no method.... could some on please help me out.... Please link some 700+ exercises with good explanations.. especially focusing on number properties pos/neg, remainders, even odd etc...
The exam is in 3 weeks but I have 21 full days since I am a student, please tell me what to do to push my score up on quant
At this point I'm thinking about focusing more on quant than verbal since