buy these books !!! come equip WITH the ANSWER KEYS !!!!!
NEVER get a math problem wrong again !!!!!!
it's so bad ass...it's god damn near MAGIC !@!!!
http://cgi.ebay.com/ws/eBayISAPI.dl...28118&rd=1&rd=1
5 of them are listed ALL with answer keys....so if u miss out on this one..msg me !!!
don't miss the chance to be the MATH GOD your parents think your not !!!