In math, 95 rounds up to 100. But for Jim Gruenwald (Colorado Springs, Colo./Sunkist Kids) that is not the case.    Before the 2004 Olympic Games in Athens, Greece, Gruenwald, 34, a two-time Olympian and high school math teacher, had said he was 95 percent sure he would be done with his Greco-Roman wrestling career.     However, Gruenwald opted to go with the 5 percent that wanted to continue wrestling. Since the Olympics in August, Gruenwald won the Sunkist International Open in Tempe Ariz., in late October and is currently the No. 1 ranked 132-pound wrestler in the U.S. Senior Greco-Roman rankings.    For the time being, Gruenwald is not looking too far in the future of his wrestling career.    "It's more of a day-by-day decision," Gruenwald said about how long he will continue to wrestle. "Before the Olympics, everyone asked if it was my last. When I lost out, they asked again. I didn't want to make a foolish decision."    Gruenwald placed sixth at the Sydney Olympics in 2000. He lost his second match in Athens to 2002 World Bronze medalist Eusebio Iancu Diacono of Romania and was eliminated.     Gruenwald currently trains fulltime at the U.S. Olympic Training Center (USOTC) in Colorado Springs, Colo.     In the wrestling room, the 5'4" Gruenwald stands out among his peers. As an elder statesman of the Greco-Roman training camp currently being held at the USOTC, he shouts encouragement and leads the others in their stretches. His small but powerful frame bounces with youth as he grapples with his partner. His legs are like coiled springs constantly prepared for motion.    "He's a great leader and a great influence on the rest of the team," said Steve Fraser, USA Wrestling National Greco-Roman Coach. "The guys in the room are going to learn from him. He gives the other guys a benchmark; they work to beat him."    Helping and tutoring younger wrestlers comes naturally for Gruenwald. At his day job, he covers geometry, Algebra II, trigonometry, calculus and physics at Hilltop Baptist High School in Colorado Springs.    Gruenwald believes learning how to think is the most important concept in math and in wrestling.    "In math it's a little bit more obvious," Gruenwald said. "But in both you have to be able to analyze situations and come up with the best outcome."    Whether he's teaching students in the classroom or helping his teammates on the mats, Gruenwald likes to take a fun approach to learning.    "I've got kind of a goofy teaching style," Gruenwald said. "My approach is light-hearted. I think, whether its math or wrestling, it's got to be interesting and at the same time be relevant. Kids are lazy. You have to give them good instruction and keep them interested."    As he has gotten older, Gruenwald has also had to teach himself a new method of training.    At the 2003 World Championships, he dislocated his shoulder against two-time Olympic champion Armen Nazarian of Bulgaria. Through extensive rehabilitation, Gruenwald was able to win the U.S. Nationals in Las Vegas, Nev. just six months after his devastating injury.    "I've learned that I've got to be smarter in my training," Gruenwald said. "My body is different and I need to know just how far I can push it."     The ultimate direction Gruenwald would like to push himself is to a World Championship title or an Olympic gold medal.     For a man who is a two-time Pan American winner, a World Cup champion, a U. S. Nationals champion, an Olympic Team Trials champion, a three-time National Christian college champion and a Wisconsin state high school champion, there isn't anything else he wants to achieve.    "My two options are to retire or win the Worlds or the Olympics," Gruenwald said. "I will be thankful regardless of what happens, but really that's what I want to accomplish."    Gruenwald's biggest supporters in his career decisions and on his quest for the definitive titles are his wife Rachel, his son Aidin, 3, and his daughter, Arwyn, 1.    "I support him in whatever decision he makes," Rachel said. "Whether he had decided to quit or go on, as long as he feels like that's what God wants him to do, then I know it's right for him."    With the backing from his teammates, coaches and family, Gruenwald takes his position as one of America's top wrestlers seriously.    "It's a great responsibility, representing your country," Gruenwald said. "If I'm going to do it, I want to do it well. Right now I feel like I can still do it well."    As long as Gruenwald feels confident, then he will continue to be considered the leader of the U.S. National Greco-Roman wrestling team.    "As long as he wants to stick around, we want him," Fraser said. "He's still the man. He's still the No. 1 guy."