Puzzles & Brain Teasers

# Here Are 11 Handy Math Hacks They Didn’t Teach You In School

### We wish we knew then what we know now!

Disclaimer right up front: Math dogged me throughout my school years. I wanted to be good at it, but it just wasn’t going to happen (even though I had a first-gen Texas Instruments calculator!). If I had known these handy math tricks back then, it might have been a different story.

Master these 11 hacks and people will think you’re a math whiz—even if you struggled through high school calculus!

## 1. Convert From Celsius To Fahrenheit

This was never easy to understand in school, but now that it’s broken down like this. Well, that wasn’t so hard now, was it?

## 2. Mental Multiplication

The key to mental multiplication is breaking large numbers down into smaller numbers. The smaller the better, in fact.

## 3. Butterfly Method

This method makes adding and subtracting fractions a piece of cake.

## 4. Multiplication Hacks

Here’s a quick way to find the product of any number multiplied by 11. Genius!

## 5. 0-9

This would have been nice to know. 0-9 in one column and 9-0 in another, and there you have it, all of the multiples of nine.

## 6. Easy As Pi

Oh, I see! “May I have a large container of coffee” is much easier to remember than all of the digits of Pi.

## 7. Drawing In Math

This is a great trick for people who learn better through visuals.

## 8. 6, 7, 8 and 9 Tables Finger Multiplication

Finger multiplying? Now, that I can handle. See step-by-step instructions at Instructables.

## 9. Percentages

Figuring out percentages was always tricky, until now. This trick is brilliant.

## 10. Greater Than Or Less Than

Well, now, that’s a cute way to remember greater than, less than or equal to. It all depends on which way the alligator’s mouth is turned!

## 11. Use Vedic Multiplication To Find A Product

It’s sort of like connect the dots, right? It helps when math is fun! This approach can help you solve for the product of large numbers. In this case, the equation is 32×31 and the answer is 992 (you read the answer from right to left). Read more about how this works here.

And just in case you can’t get enough math hacks, check out this video that will open your eyes to a whole new way to think of mathematics, a way you might never have learned in school, perhaps.

You never know when these tips and tricks could come in handy! Whether you want to keep learning or want to teach your kids, there are plenty of websites that will help you practice your math skills. You can find a few examples on this website.

[h/t: DIY Craft Projects]