1.) Kakashi had 'the Last Uchiha' on his team, I doubt he'd have been allowed to fail them. 2.) They did grasp the 'teamwork' part of his bell-test finally, so that's his official excuse.>>10791381
1-6 probably failed as part of that 66% failure rate. I forget if Team 9 is actually Team Gai and the number was skipped because it was still in circulation from the previous graduating class or if they just skip announcing that team and go straight to 10.