This product is a set of printable, color-coded grids for working math problems. I have included a page of grids (and an example problem) for each of the four basic operations: addition, subtraction, multiplication, and division. These grids are especially useful for students who have trouble writing their numerals in columns and for those who have trouble tracking a vertical column with their eyes. The grids are also useful for singling out and explaining specific steps in the calculation proc