When you take 3 Nickelodeon teen stars from 2 different hit television shows, add 1 fun educational program (with an exciting new sweepstakes) and multiply by the fact that you’re helping kids with cancer, it’s bound to be an equation for success.

“iCarly”stars Jennette McCurdy and Nathan Kress and “Victorious” star Ariana Grande are teaming up to help kids across the country get excited about developing their math skills through the St. Jude Math-A-Thon program, America’s largest education-based fundraiser for St. Jude Children’s Research Hospital. The young stars also are helping launch a new sweepstakes that will give two lucky students the opportunity to visit the set for a taping of a Nickelodeon show.

Last year, McCurdy, Kress and Grande visited St. Jude with the entire casts of both shows to provide a special sneak peak of their Nickelodeon shows and throw a party for St. Jude patients and their family members. Now, the trio is helping engage teachers, students and parents in the St. Jude Math-A-Thon program while at the same time raising awareness for St. Jude’s lifesaving mission of finding cures for children battling cancer and other deadly diseases.

“I’ve had the opportunity to visit St. Jude on several occasions and each time I go back I meet the most amazing kids,” said McCurdy. “Even though they’re dealing with these terrible diseases, they have the biggest smiles on their faces when they see us.”

The winner of the sweepstakes will be determined by drawing two winning schools from 2011-2012 St. Jude Math-A-Thon program participants, who will then each select a student (one student per school) to win a trip to Los Angeles in 2012 to visit the set for a taping of a Nickelodeon show.

“The St. Jude Math-A-Thon program is a fun way for kids and teachers to work on their math skills,” said Kress. “Not only will they be helping other kids battling cancer at St. Jude but through the sweepstakes this year they might get the chance to come out for a taping of a Nickelodeon show!”

“I wanted to support the St. Jude Math-A-Thon program because it’s something that has always been important to my family,” said Grande. “Kids are going to have a great time participating in the program and helping raise money for other kids battling cancer at St. Jude.”

For more than 30 years the St. Jude Math-A-Thon program has been America’s largest education-based fundraiser and has raised $417 million for St. Jude. The program includes a math curriculum supplement for grades K-8 that students complete after obtaining sponsorships from family and friends. Schools from all 50 states have participated in St. Jude Math-A-Thon with more than 6,800 schools involved in the program last year alone.

“The St. Jude Math-A-Thon program is a great opportunity for kids to help other kids battling cancer and other deadly diseases at St. Jude,” said Richard Shadyac Jr., CEO of ALSAC, the fundraising organization of St. Jude. “Jennette, Nathan and Ariana are talented young stars who are incredibly dedicated to our mission and will really help us get students and teachers across the country excited for their next math lesson.”

To learn more about the program and sweepstakes, or to get your school involved, please visit www.mathathon.org.

St. Jude Children’s Research Hospital:

Since opening 50 years ago, St. Jude Children’s Research Hospital has changed the way the world treats childhood cancer and other life-threatening diseases. No family ever pays St. Jude for the care their child receives and, for every child treated here, thousands more have been saved worldwide through St. Jude discoveries. The hospital has played a pivotal role in pushing U.S. pediatric cancer survival rates from 20 to 80 percent overall, and is the first and only National Cancer Institute-designated Comprehensive Cancer Center devoted to children. It is also a leader in the research and treatment of blood disorders and infectious diseases in children. St. Jude was founded by the late entertainer Danny Thomas, who believed that no child should die in the dawn of life. Join that mission by visiting stjude.org or following us on facebook.com/stjude and twitter.com/stjude.