A handy table of the rules of division is presented here. Examples are given for each of the rules, from the number 2 to the number 10. The site stresses that a list such as this isn't cheating, but rather a nice resource to have.

This site is an online lesson plan of how to correctly add and subtract fractions is provided here. Many examples of the processes are worked out and the solutions provided. An elementary teacher looking for some useful advice and...

This site is an online lesson plan and practice problems for students learning how to add and subtract two decimal values are provided here. Detailed explanation of both the methods and the practice questions are provided for easy...