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Dr Numsen
Academic Meet Companion
Trick Center The Dr Numsen Trick Center is a repository of Number Sense tricks. This repository currently contains over 120 tricks with over 140 examples.

The Trick Center is now a subscription based service. For only \$30 per academic year, students and teachers can access the most up-to-date resource for Number Sense on the Internet.The Trick Center will be continuously updated through the year to provide you with more tricks to cover current and expanding topics on the Number Sense test.


Samples

The following are samples from the Trick Center. Enjoy. You will need a .pdf reader to view/print these tricks.
TrickLevel
Multiplication by 11EMH
Multiplying a times a/bMH
Sum of SquaresMH

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