Thursday, 30 March 2017

Quick and easy method to mentally find 2 1/2 percent of a any number.

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Step 1) ; Choose number (Start with 2 digits and advance to 3 with practice) Step 2) ; Divide by 4. Step 3) ; Move decimal point one plac...
Wednesday, 29 March 2017

Easiest way to quick Subtraction-Group in to two's Method

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Group in to two's (Starting from the right) Example, 1) 15627 - 1211 = ?                 ⇒   1 56 27                     -    1...
Tuesday, 28 March 2017

How to Mentally find the 20% of any number.

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Step 1) Divide the number by 5. Step 2) Put down result of step first as answer. Example, 1) 20% of 60 = ?                  ⇒ 60/5 = ...
Wednesday, 22 March 2017

Shortcut trick for addition of common difference in series of numbers.

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Example, 1) 49 + 55 +  61 + 67 + 73 = ?              ⇒ Step 1) Add the smallest number to biggest number that is 49 + 73 = 122.          ...
Monday, 20 March 2017

Shortcut tricks for addition of similar digit number.

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Example, 1) 6 + 66 + 666 + 6666............ = ?                  Step 1) Take 6 common and place all 6 as 1.                            i...
Friday, 17 March 2017

Method 1) Mentally multiplication trick for any two digit number.

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Method 1) AB × CD = AC/AD + BC/BD                  Example, 1) 57 × 42                                  ⇒ Consider, A = 5, B =7, ...
Tuesday, 14 March 2017

How to find 15% of any number

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Step 1) Multiply the number by three. Step 2) Divide the result of first step by two. Step 3) Move the decimal point to one place left....