Pre-algebra lessons

An interesting and challenging pre-algebra topic

Ancient numeration system
Interesting topic for students in elementary school and middle school. How did people write numbers in the past?

Useful basic math formulas 

Basic math formulas 
A list of important formulas that you need to know in pre-algebra 


  • Learn to add, subtract, multiply and divide whole numbers, decimals, fractions.
  • Learn about proportion and percents
  • Round and estimate numbers
  • Explore metric and customary units
  • Learn the GCF and the LCM
  • Learn some basic concepts in set theory
  • And more!

Tough algebra word problems

100 Tough Algebra Word Problems.

If you can solve these problems with no help, you must be a genius!

Math quizzes