How difficult are the ASVAB subjects for the army?

well I just did the U.S Navy version.. I believe both tests are similar for each branch.. the Navy required me to take a speed test, I doubt the army does the same.. but overall its basically highschool man.. I graduated from my highschool with a 2.4 GPA (not the greatest cuz I was lazy) but on the ASVAB i got 75% AFQT percentile range, and missed the nuclear program for the navy by 18 points... so I didn't find it too difficult.. just study and and try your best.