Maths Tricks
 

 

 
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Maths Tricks
 
  Multiply any two numbers from 11 to 20 in your head.   Multiply any two digit number with 11.
  Multiply any number from 1 to 10 by 9   Square a two digit number ending in five
  Square any two digit number   Multiply any number by 11 .
  Square a 2 Digit Number, for this example 37:   Finding 5 percent of any number
  Squaring numbers in the hundreds.   Squaring a number in the two hundreds.
  Squaring a number in the three hundreds   Squaring numbers in the four hundreds
  Squaring numbers in the five hundreds
 
Dictionaries
Dictionary of Chemical Terms

Look up unfamiliar chemistry terms....

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Plasma Dictionary

The Plasma Dictionary is based on the Fusion & Plasma Glossary that was originally created on FusEdWeb, Fusion Energy Educational Website which has additional introductory information on plasma and fusion science .

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Planet Dictionary

A planet (from the Greek planete means "wanderer" or more forcefully "vagrant, tramp") is an object in orbit around a star that is not a star in its own right. Much like "continent," "planet" is a word without a precise definition, with history and culture playing as much of a role as geology and astrophysics

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Computer Abbreviations Dictionary

Searchable glossary of computer and Internet words, acronyms, and abbreviations.

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Dictionary of Chemical Terminology

This is a "living glossary". This means that the glossary may grow every week as individuals submit new entries. This has been set up as a class resource for CEM-181H, the freshmen honors chemistry lecture at Michigan State University.

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Dictionary of Commonly Confused Words

The Wrong Word Dictionary : Most Commonly Confused Words · The Words Almost Everyone Confuses and Misuses .

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Dictionary of Geology

A science that deals with the history of the earth as recorded in rocks.

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World Occupational Wages (OWW)

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United State Aircraft registration and Aircraft Reference Information

(Contains the records of all U.S. Civil Aircraft maintained by the FAA, Civil Aviation Registry, Aircraft Registration Branch, AFS-750.)

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