It just multiplies out. The lesson provides the rules for operations with exponents and keeps them as positive integers in the lesson. Videos explain the rules for the operations with exponents while working out examples. 

Make sure your students' understanding of fractions is on-point using this series of skills practice worksheets. Covering a variety of topics from basic place value and fraction/decimal conversion, to performing all four operations...

Guide young mathematicians through the crazy world of negative numbers with a handy reference document. Offering clear instructions for adding and subtracting positive and negative integers, this resource is a great way to...

Two students were sitting on a log and decided they wanted to be awesome at math. Bring in the logarithm handout! The first page introduces the idea of a logarithm and the different operations and rules it entails. The second page...

Show your class that not all equations are linear. The lesson asks learners to solve simple quadratic and cubic equations using square and cube roots. Problems include equations with no solutions. 

Overview of the four basic number properties with examples.

In Spanish. encyclopedic explanations of the four basic operations. Also linked to other information on arithmetic.