That's great! The standard way we do them is 10 sets of 10 reps.
But there's all sorts of way to do them.
Sets of 20 get brutal!

you can try and do 10 every minute on the minute. This gets rough!

Do a giant set of 40, rest a few minutes, set of 30 , rest, set of 20 and then set of 10!

You can go for a 1 or two mile run and hit 10 burpees along the way 10 times...talk about a hard run!!!