Basic math is one of the most beneficial subjects we ever study in school. Some of well-known
people have even said numbers are the secret to the universe! That aside, some of us have a lot of problems with particular tasks and, with the increase in smartphones, we all have calculators with us on the go. But what about those unusual moments we don't? Here are 7 math trick that might change your lives.

Butterfly method for adding and subtracting fractions! No fighting over pizza anymore!

Your hands can tell you the future ... okay, fine, it can tell you multiples of 6, 7, 8, and 9!
Multiples of 9 works in reverse order!
Know what date will fall on what day of the week any time ... GENIUS! CLICK HERE to find out how.

How to convert Fahrenheit to Celsius and vice versa all in your head!

Percentages will never stifle you ever again
Reverse Zorro! Starting at the bottom, draw a line from the 4 to the 24 (4 goes into 24 six times). Draw the line to the 3 (six times three is 18). Draw the top line and write the answer.

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