The Romanian team were hard at work in training ahead of their game against Spain on Sunday, wearing some unique kits. 

In an effort to promote maths to kids who might be watching the game and paying attention to the team, they replaced the numbers on their shirts with something a bit different. 

Instead of their squad number, their jersey instead shows a mathematical formula to workout the number they're wearing, from 2x3 to 46÷2. 

Romania changed their training kit from numbers to maths calculations to help kids improve their maths. pic.twitter.com/bwbd3f2qZH

— Coral (@Coral) 27 March 2016

Hopefully, it won't make life too difficult for the referee as he tries to figure out what number the player is when he goes to book them.

Still, it might be the right formula for them to win, but the odds are not in their favour against Spain. 

Via FRF.ro