WHY DO ROMANIA HAVE MATHS EQUATIONS ON THEIR SHIRTS?

In a bid to help the country's drop-out rate among schoolchildren, the squad's training tops will replace shirt numbers with maths problems.
Romania players have swapped their regular shirt numbers for maths equations in a bid to held their country's children with their poor education.
The numbers, which feature on training tops, hope to help prevent the rising rate of school drop-outs, with 14 per cent of primary school-age children out of the education system according to a 2014 report by the Education Policy and Date Centre.
In addition, a review by the Romanian educational minister in 2014 states as many as 20% of school-age children living in rural Romania did not have access to secondary education just two years earlier.
Romania will play an instructional video at the Cluj Arena ahead of Sunday's friendly against Spain, while manuals will be available online.

I do think Nigeria should adopt this.