I give lots of multiplication practice, yet timed doesn't work for all for my extra assistance math class. It also didn't work for all when I taught advanced math- some were more cautious, and that was ok. If I do give it to my current class, they have five minutes for about 50 problems, and I then correct, yet I do not hold the score against them. However, what's your take on it? I've heard different opinions on how it works versus how it hasn't for some kids. Do you take it for a grade? If so, how much?