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Product Description:

The Number DNA™ PreAlgebra Skill Builder software contains nearly 600 refreshable workouts and tests distributed over the following topics:

  • Add/Subtract/Multiply/Divide Whole Numbers
  • Add/Subtract/Multiply/Divide Integers
  • Factors/GCF/LCM and The Number Game
  • Add/Subtract/Multiply/Divide Fractions
  • Add/Subtract/Multiply/Divide Decimals
  • Converting between Percent's and Fractions and Decimals
  • Estimating and solving Percent problems

Each subscriber has their own personal home page that keeps track of their progres and includes links to their next workout or test. .


Our product is newly developed. The Numerical Reasoning, Fractions and Decimal modules have been beta-tested by over 600 students in the Flint, Brighton, Ypsilanti and Ann Arbor areas of Michigan. These students have completed over 600,000 problems with an accuracy rate of 78%. 


Your login information will be sent within 24 hours of receiving payment.

Number DNA

PriceFrom $10.00
Price Options
Individual Monthly
$10.00every month until canceled
Individual Annual
$90.00every year until canceled
Family Monthly
$20.00every month until canceled
Family Annual
$160.00every year until canceled
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