Recently to the practice asvab at the recruiter's office?

Okay i have recently taken the asvab practice test at the recruiters office and he told me i made a 23 but that's not to bad because i would from what he told make a 32 or better on it, and is it True that the practice test is harder than the actual test and plus i am a little worried about the test as well i had special education cles in high school for math and i still do well on the test even though i suck at math, could i score high on the word knowledge and paragraph comprehension and do bad on both maths and get a high enough score! please help! thank you