How can you tone your stomach if you are in 8th grade and are 5'9'' and weigh 145 and your legs and arms are muscular because you play softball but your stomach is not?

I feel ya. Same thing happend to me.......CRUNCHES!!!!!!!!!!!!!! Dude,they work like magic. All you have to do is stick your feet under a dresser,bend your kness, and try to sit up without straining. I did the same thing and in just 50 sit ups, i was rock hard!Oh, and try to add some cardio!GOOD LUCK!