"Put not your trust in money, but put your money in trust." ~ Oliver W. Holmes
We used these sheets for fourth grade word problems. They also have worksheets for other grades and subjects. This site in particular had more than others, and some of them were fun.
This site has seasonal word problems which were not as challenging, but still a good review.
ABC Teach had a few as well.
I'll add more as we work through these. If I have time, I'll make some of my own sheets, referencing his fourth grade math book. He's finished with it; we begin fifth grade math in October. We are brushing up on word problems before he launches into fifth grade math.
And if you have an older child or math whiz, here is a very tricky math problems book from the turn of the century. It also involves converting British currency. The transcriber has kindly added a conversion chart to the beginning of this public domain text. The quote and picture above is from this text.
Hint: An easy way to use the text is to copy, paste and print select problems, along with the conversion chart, into a word processor. That way you don't have to print out the entire book.
Free Math worksheets with some word problems.