Do you or your student need some extra practice?  Try using what’s available on the internet.  In 7th grade math we are currently working on several types of problems that require frequent decimal multiplication.  A quick Google search yielded the following results.

Any of the first five results are great places to find practice problems!  Some are electronic, and some link to copies of worksheets.

Don’t forget, every student is familiar with Khan Academy, so this is probably the easiest resource.  Also, IXL.com has a similar set-up, but does not require registration simply for extra practice problems.  Both resources will also assist students in correcting their errors.  Have fun become well-practice mathematicians!