Mental math is the ability to perform arithmetic calculations without the aid of external computing tools. The Trachtenberg System, abacus mental math and Vedic Mathematics utilize memorization and visualization abilities to develop mental math skills.
Many people use mental math every day without even realizing it. Calculating a tip, determining when to apply your brakes so you will not hit the car in front of you, and figuring out if you have enough time to finish all your errands while on your lunch break are all examples of using mental math.
Mental Math Example
By applying the formula (10% + 5% = 15%) anyone can use mental math to calculate a 15% tip.
- Multiply the final cost of the bill by 10% (.10)
- Divide the result by 2
- Add the first result and the second result together
Mental Math Systems
Mental Math Books and Publications
Amazon.com: Mental Math Books
Half.com: Mental Math Books
Google Book Search: Mental Math Books
Mental Math Master: The Best Strategy for Learning Mental Math
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References
Fast Facts
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Fact:
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Trachtenberg System
Based on memorizing a series of keys and the ability to count
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Vedic Mathematics
An ancient Vedas system of mathematics based on formulas (Sixteen Sutras)
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Fact:
Vedic Mathematics was popularized in the early 1900s by Indian Sri Bharati Krsna TirthajiVedicmaths.org: What is Vedic Mathematics
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Abacus mental math
A system of visualizing an abacus to make calculations
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Fact:
The U.S. Mental Math Federation holds several national competitions U.S. Mental Math Federation: Spotlight
