How many calories should a 13-year-old girl consume daily is she is 5 feet and 4 inches and weighs 124 pounds if she is trying to lose up to 10 pounds in 6 weeks with excerise?

.... you do not need to lose weight.. just thought I'd say that first.

A pound = 3500 calories.

Depending on how many calories you burn with exercise, and how much you burn as a base.. I'd say you burn about 1500-1800 calories a day, just existing. Cut back so you lose about 1.5-2 pounds a week.. Eat about 1200-1300 calories a day.

Honestly, you're still growing... and you probably don't even need to cut back that drastically if you're going to exercise. You could probably just exercise and be fine, and lose the weight as long as you don't eat any more than you are right now.

Good luck!