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See This Mind Blowing Fact About Mathematics

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See This Mind Blowing Fact About Mathematics
« on: January 16, 2018, 02:23:58 AM »
 

apeiron24

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Multiplying by 6

If you multiply 6 by an even number, the answer will end with the same digit. The number in the tens place will be half of the number in the ones place.

Example: 6 x 4 = 24

Multiply Large Numbers in Your Head

To easily multiply two double digit number, use their distance from 100 to simplify the math:

1.   Subtract each number from 100.
2.   Add these values together.
3.   100 minus this number is the first part of the answer.
4.   Multiply the digits from Step 1 to get the second part of the answer.

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