Maths part of Euro 2016 equation for Romania
Romania's footballers swapped their traditional squad numbers for maths problems ahead of Sunday's international friendly against European champions Spain in Cluj.
The idea is part of an initiative to help combat the school dropout rate in Romania, listed at 18 percent in 2014, which is one of the highest in the European Union.
The equations were printed on the back of Romania's training tops and worn during the warm-up, while an instructional video aired at the Cluj Arena before kick-off.
"Football and mathematics are not mutually exclusive," said Romanian Football Federation president Razvan Burleanu.
"We must look at sports and education as not only complementary but fundamental elements integrated in the training and perfection of children.
"We want to have healthy generation and smart students who achieve performance and tools through tailored passions.
"Through this project, children will learn the basics of football and have an opportunity for the first time in our country ?- to discover mathematics through an attractive approach."