My 9th grade national tests just came back. I did above average on everything, my quantitive thinking however barely got passed the average mark. My parents are not pleased, even though they are decent scores. So, I need help on this subject. Any books or websites that provide this quantitive thinking skill or that could enhance mine? The test was timed, and I suck at timed tests. So, can you explain to me about Mathematical quantitive thinking and how to take a timed test on one? The reason I barely passed the average mark was because I ran out of time and couldn't finish.... Any hints or links would be very helpful.