math-word problems

My oldest has not been doing really good w/math lately. He told me today that if it was not for math he would actually like school!

We are using Math-U-See Delta and are going backwards right now!!

I think we just need to go over some things again.

My kids found a few online games to practice math facts, I was just wondering if anyone knows anything like that w/word problems and/or on converting oz in lbs, yards in feet, that sort of things?

Some of these things do not seem to get into his head!