Could someone suggest some studying material for the basic number concepts, such as sets, integers, multiples, factors, prime numbers... I have no problem solving word problems that involve algebra and geometry, but when it comes to these basic concepts, I don't know where to begin. Maybe lots of practice questions would also help.
This is especially problematic for me in the data sufficiency section. ie: is x>0, 1) x^3<0, 2) (x^2)^0.5 >0 Ofcourse, the actual exam questions are a lot hard.
Thanks
This is especially problematic for me in the data sufficiency section. ie: is x>0, 1) x^3<0, 2) (x^2)^0.5 >0 Ofcourse, the actual exam questions are a lot hard.
Thanks
