A simple, no fluff two-digit by two-digit multiplication worksheet: Estimating Products by Rounding. For assessment use after teaching the strategy.
NOTE: In the thumbnail for the first page, it appears that there is a box at the bottom that shouldn't be there, but on the actual download it does not show up. The second page looks like it is misaligned for the last problem, but again, it shows up correctly on the actual download. I am not sure why the thumbnails are messed up!