Quicker Maths

Fast Multiplication by 5

Posted on November 16, 2009
This fast calculation trick or vedic maths trick will teach you how to multiply any number by 5. The concept can be divided in two parts as shown-
MULTIPLYING 5 TIMES AN EVEN NUMBER
Memory Trick: Halve the number you are multiplying by and place a zero after the number.
Example:
i. 5 × 136, half of 136 is 68, add a zero for an answer of 680.
ii. 5 × 874, half of 874 is 437; add a zero for an answer of 4370.
MULTIPLYING 5 TIMES AN ODD NUMBER: subtract one from the number you are multiplying, then halve that number and place a 5 after the resulting number.
Example:
343 x 5 = (343-1)/2 | 5 =  1715

This fast calculation trick or vedic maths trick will teach you how to multiply any number by 5. The concept can be divided in two parts as shown-

MULTIPLYING 5 TIMES AN EVEN NUMBER

Memory Trick: Halve the number you are multiplying by and place a zero after the number.

Example:

i. 5 × 136, half of 136 is 68, add a zero for an answer of 680.

ii. 5 × 874, half of 874 is 437; add a zero for an answer of 4370.

MULTIPLYING 5 TIMES AN ODD NUMBER: subtract one from the number you are multiplying, then halve that number and place a 5 after the resulting number.

Example:

343 x 5 = (343-1)/2 | 5 =  1715

You may also like:

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Posted by Vineet Patawari

Comments (2) Trackbacks (0)
  1. this is great………….

  2. what is so special in this…


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