Printable grid paper is real must-have for your math sheet-files because you can teach so many topics with it. I made these free downloadable blackline grid templates that are drawn to scale both for inches and cm. Use them for creating symmetry worksheets, bar graphs, reflections (flips), translations (slides), rotations (turns), area and perimeter models and 100 charts. The exact sizes in this set are: .5cm x .5cm grids (for making hundreds charts and multiplication charts) 1cm x 1cm grids, 2cm x cm grids, and 1 inch x 1 inch grids.
Here’s another use I found for them: fitting in nets of cubes. This is an excerpt of my free Nets of Cubes Activity Sheets.