This PDF file includes 2 worksheets - a full number grid (100 squares) and a short 6-question fill-in-the-number-grid worksheet.
The fill-in worksheet is blank. I figured teachers would want to fill it in as they see fit for their students. In other words, print this, fill in the numbers you think your students need help with, make a photo-copy, and then hand them out.
The first sheet is for students to fill in. They can use it as a reference sheet, activity, or even a quiz! Enjoy!