Wales exploited the extra man with tries by George North (2), Jamie Roberts (2), Taulupe Faletau, Liam Williams and Rhodri Williams.
The only negative for Wales and Blues was an injury to flanker Sam Warburton. Further information on his injury will be released this week.
Meanwhile, Wales Under 18 head coach Allan Lewis was pleased with aspects of his side's performance against France despite going down to a narrow defeat in the end.
The Welsh youngsters - who included Kieron Assirratti, Robert Lewis, Liam Belcher, Seb Davies, Calum Haggett, Michael Hale, James Whittingham from Blues - gave up a 14-6 half-time lead to finish on the losing side 18-17 in Chartres.
Lewis said: "I can't fault the players' effort and the pack were excellent. But we needed to keep possession for longer periods in crucial areas and that's what let us down in the end. It was disappointing to lose, especially from a position where we were leading but we made it easier for France."
Wales play England next Sunday at the Gnoll (kick-off 1.45pm) and Lewis believes his side will need to be more efficient if they are to come away with a result.
"The challenge next week will be even bigger, especially up front, and England will ask more of our defensive patterns too. As a group, we learn a huge amount from games like this so we are looking forward to preparing for and playing England next Sunday."