One thing that seems to give kids some trouble is learning to measure with a ruler (especially when they have to round to the nearest inch, half inch, etc.). Here’s a free measurement practice page. Happy measuring!
Squarehead Teachers
Free teacher stuff to get your elementary classroom all SQUARED away!
Squarehead Teachers 
love this worksheet. How do you print?
Click on the blue hyperlinked words. It should pull up a printable PDF version.