A lot of the websites charge high dollar amount for these math worksheets. Considering your willingness to spend the high dollar, you run in to a new problem - the uniqueness of the material, a lot of websites offer sheets packed with identical problems leading the child to almost rote memorization of the problems and solution. This leads to deprivation of student and his/her ability to solve the problems logically. And some websites offer sheets in portable document format. And to open such sheets you are forced to download special software.
Visual and Other Elements, Heading, The heading of the worksheet is very important. You need to check if the heading summarizes the worksheet? It ideally should summarize what the worksheet is all about. Layout Check the basic layout of the worksheet before buying it. Is the layout cramped or well spaced? How good are the visuals on the page? Can they keep the attention of little children? What is the quality of the content on the worksheets? The text for example, should not contain long sentences. This can make it difficult for the child to read. The language should also be simple so that children can understand what is written. Other things to look for are the quality of paper used and the packaging of the worksheets.