  Select an activity: Periods of Place Values Arithmetic Flash Cards Rounding Whole Numbers Operations with Whole NumbersA complete set of activities featuring arithmetic operations with whole numbers. Activities can be assigned according to level of difficulty as well as special features such as division with/without remainders. This is the most most popular interactive features on Free-Ed.Net. FactoringGet ready for adding and subtracting fractions. Fractions, Fractions, FractionsThis is version 2.0 of the popular fractions "flash cards." Fractions are learned by looking at a lot of examples and they are mastered by doing a lot of problems. It's all here with Fractions, Fractions, Fractions. Rounding Decimal Fractions Converting Between Fractions and Decimals Mastering Decimal Fractions This is a complete set of endless drills with decimal arithmetic. You can select among 24 different activities that are arranged according to type of operation and level of difficulty. Operations with Signed Numbers Use these "flash cards" to work with an endless list of signed-number problems--addition, subtraction, multiplication, and division of both positive and negative numbers.  Order of Operations with Integers This is a set of endless drills that build confidence with solving integer operations that involve combinations of addition, subtraction, multiplication, and division. There are four levels of difficulty. Working with Percents   Word Problems: Time, Speed, and Distance Use these problem sets to reinforce elementary problem-solving skills and build confidence. Roots and Powers Some problems require the aid of a calculator, while others encourage the learner to work the problem "on paper.". Perimeter, Area, and Volume of Common Geometric Figures   Introduction to Graphing Here is a selection of graphic activities, from plotting points to plotting linear equations. Solving Linear Equations in One Variable