Category Archives: Speed Mathematics

This Category gives the methods to solve the problem in effective , efficient manner.

Divisibility By Eleven

    Consider for example: Is 647053 divisible by 11 ? Simply keeping on subtracting the unit’s digit from the  number ( without units digit) 64705 – 3 = 64702 6470 – 2 = 6468 646 – 8 = 638 … Continue reading

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Power Cycle Concept and its application

  In this post , i have given brief introduction to the power cycle concept and its application in finding the last digits of a number raised to another number. I will be writing about it in detail in upcoming … Continue reading

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Multiplication by Six

We all know about the multiplication of any number by 11 and 12.       From the method of multiplication by 12 , we can modify it and get the method to multiply any number by 6.     … Continue reading

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Some Time Saving Results

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Special Multiplication

As always I think about  shortcuts to perform multiplication easily.    Many love to learn new tricks , shortcuts to enhance their speed in problem solving. Let me share one of the trick today . ” Multiplication of two 2 … Continue reading

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Multiplication consisting of only ones

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Squaring of the three digit number having middle digit equal to zero

Correction : 701^2 =491401

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Squaring any three digit number whose hundredth digit is 5

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Adding Time In Easy

   When I was solving the problem based on time , I was thinking about a shortcut way of  adding the given two times. Consider for example , if I write take  4 hours 35 minutes to write 16 pages … Continue reading

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