Education

# Math professor shows how adding and subtracting left to right is actually easier and faster

### Mind. Blown.

Howie Hua shares helpful math tips and tricks on social media.

Math is weird.

On the one hand, it's consistent—the solutions to basic math problems are the same in every country in the world. On the other hand, there are multiple strategies to get to those solutions, and it seems like people are still coming up with new ones (much to the chagrin of parents whose kids need help with homework using methods they've never learned).

Math professor Howie Hua shares math strategies that make math easier on social media, and his videos are fascinating. Hua, who teaches math to future elementary school teachers at Fresno State, demonstrates all kinds of mental math tricks that feel like magic when you try them.

For instance, Hua has two videos showing how easy and quick it is to add multidigit numbers left to right instead of right to left, and it's genuinely mind-blowing.

Check out how he explains why adding left to right is "underrated."

OK, seriously. That is way easier to do in your head. It's basically putting the numbers into expanded form and adding them, which makes it easier to visualize.

Adding this way makes sense, but subtracting is a bit more complicated, right?

Wrong, apparently. Watch Hua work his math sorcery subtracting two and three-digit numbers.

@howie_hua

Did you know you can subtract left to right? #math #mathematics #mathtok #maths #teachersoftiktok #teacher #mathtricks #mathtrick

Holy moly. That's faster than the right-to-left, borrow-from-the-next-column method, isn't it? And again, so much easier to visualize what's actually happening, though I don't know if I could fully do this in my head like I could with the left-to-right addition.

Hua recently shared another cool subtraction trick for problems with minuends that have a lot of zeroes. (The minuend is the first number in a subtraction problem. Don't be too impressed. I had to look it up.)

Check this out:

@howie_hua

An underrated subtraction strategy #math #mathematics #mathtok #maths #teachersoftiktok #teacher #mathtricks #mathtrick

So simple, so time-saving and so something I would never have figured out on my own.

These tips and tricks might come in handy for anyone, but they're especially useful for kids who are having to do these kinds of math problems at school all the time. Even if they're supposed to solve the problem with a different strategy, these methods can be a quick way to check their answers.

Anything that makes math easier, I say. You can watch Hua's videos on TikTok, YouTube and Twitter.

Health

### Trying to eat healthier? Try these 4 totally doable tricks.

Photo by Anna Pelzer on Unsplash

Most of us want to eat healthier but need some help to make it happen.

True

When it comes to choosing what to eat, we live in a uniquely challenging era. Never before have humans known more about nutrition and how to eat for optimal health, and yet we’ve never been more surrounded by distractions and temptations that derail us from making healthy choices.

Some people might be able to decide “I’m going to eat healthier!” and do so without any problem, but those folks are unicorns. Most of us know what we should do, but need a little help making it happen—like some simple hacks, tips and tricks for avoiding pitfalls on the road to healthier eating.

While recognizing that what works for one person may not work for another, here are some helpful habits and approaches that might help you move closer to your healthy eating goals.

Our mouths loves chips. Our bodies not so much.Photo by Bermix Studio on Unsplash

### Tip: Focus your willpower on the grocery store, not your home

Willpower is a limited commodity for most of us, and it is no match for a bag of potato chips sitting on top of the fridge. It’s just a fact. Channeling your willpower at the grocery store can save you from having to fight that battle at home. If you don’t bring chips into your house in the first place, you’ll find it a lot easier to reach for something healthier.

The key to successful shopping trips is to always go to the store with a specific list and a full stomach—you’ll feel much less tempted to buy the junky snack foods if you’re already satiated. Also, finding healthier alternatives that will still satisfy your cravings for salty or crunchy, or fatty foods helps. Sugar snap peas have a surprisingly satisfying crunch, apples and nut butter hit that sweet-and-salty craving, etc.

You can eat well without giving up sweets completely.Photo by Caitlyn de Wild on Unsplash

### Tip: Instead of “deprive,” think “delay” or “decrease and delight”

Sugar is a tricky one. Some people find it easier to cut out added sugars altogether, but that can create an all-or-nothing mindset that all too often results in “all.” Eating more whole foods and less processed foods can help us cut out a lot of ancillary sugar, but we still live in a world with birthday cakes and dessert courses.

One approach to dessert temptation is to delay instead of deprive. Tell yourself you can have any sweet you want…tomorrow. This mental trick flips the “I’ll just indulge today and start eating healthier tomorrow” idea on its head. It’s a lot easier to resist something you know you can have tomorrow than to say no to something you think you’ll never get to have again.

Another approach when you really want to enjoy a dessert at that moment is to decrease the amount and really truly savor it. Eat each bite slowly, delighting in the full taste and satisfaction of it. As soon as that delight starts to diminish, even a little, stop eating. You’ve gotten what you wanted out of it. You don’t have to finish it. (After all, you can always have more tomorrow!)

A naturally colorful meal is a healthy meal.Photo by Anna Pelzer on Unsplash

### Tip: Focus on fresh foods and plan meals ahead of time

Meal planning is easier than ever before. The internet is filled with countless tools—everything from recipes to shopping lists to meal planning apps—and it’s as awesome as it is overwhelming.

Planning ahead takes the guesswork and decision fatigue out of cooking, preventing the inevitable “Let’s just order a pizza.” You can have a repeating 3-week or 4-week menu of your favorite meals so you never have to think about what you’re going to eat, or you can meal plan once a week to try new recipes and keep things fresh.

It might help to designate one day a week to “shop and chop”—getting and prepping the ingredients for the week’s meals so they’re ready to go in your fridge or freezer.

Organic foods are better for the Earth and for us.Photo by andrew welch on Unsplash

### Tip: Utilize the “dirty dozen” and “clean 15” lists to prioritize

Many people choose organic because they want to avoid pesticides and other potentially harmful chemicals. Organic food is also better for the planet, and according to the Mayo Clinic, studies have shown that organic produce is higher in certain nutrients.

Most people don’t buy everything organic, but there are some foods that should take priority over others. Each year, researchers from the Environmental Working Group (EWG) analyze thousands of samples of dozens of fruits and vegetables. From this data, they create a list of the “Dirty Dozen” and “Clean 15” fruits and vegetables, indicating what produce has the most and least pesticide residue. These lists give people a good place to start focusing their transition to more organic foods.

To make organic eating even simpler, you can shop O Organics® at your local Albertsons or Safeway stores. The O Organics brand offers a wide range of affordable USDA-certified organic products in every aisle. If you’re focusing on fresh foods, O Organics produce is always grown without synthetic pesticides, is farmed to conserve biodiversity, and is always non-GMO. All animal-based O Organics products are certified humane as well. Even switching part of your grocery list to organic can make a positive impact on the planet and the people you feed.

Healthy eating habits don’t have to be all or nothing, and they don’t have to be complicated. A few simple mindset changes at home and habit changes at the grocery store can make a big difference.

Joy

## 13 truck drivers parked side by side in the middle of the night to save a life

### Humanity at its best.

Around 1 a.m. on April 24, semi-truck drivers in the Oak Park area of Michigan received a distress call from area police: An unidentified man was standing on the edge of a local bridge, apparently ready to jump onto the freeway below.

Those drivers then did something amazing. They raced to the scene to help — and lined up their trucks under the bridge, providing a relatively safe landing space should the man jump.

Fortunately, he didn't.

The impressive line-up wasn't a coincidence — the drivers were prepared for exactly this sort of situation.Sgt. Jason Brockdorff of the Huntington Woods Police Department told The Detroit News that the response was something local police and truck drivers had actually trained for. But what was unusual was the sheer number of drivers who responded to the call.

"That's a practice we use if we have a jumper," Brockdorff said. "We try to do it every time, to lessen the distance someone would travel if they were to jump. Fortunately, that didn't happen."

The incident lasted nearly four hours, into the early morning. However, once the trucks were in place, the police were able to more comfortably negotiate with the unidentified man.

Eventually, the man walked off the bridge on his own and is currently receiving medical help.

In a pair of tweets, the local police department called attention to the incident to remind people in similar situations of the importance of seeking mental health services (emphasis mine):

This photo does show the work troopers and local officers do to serve the public. But also in that photo is a man struggling with the decision to take his own life. Please remember help is available through the National Suicide Prevention Lifeline at 1-800-273-8255.
You can also call a loved one, member of the clergy or 911. There are so many people that can help you make the choice to get help and live! It is our hope to never see another photo like this again.

Working together, the police and everyday strangers saved a life.

Ordinary people heeded the call of service to help a fellow person who was struggling. It's a powerful image that's impossible to ignore, and a reminder of humanity at its best.

## Meet the 18-year-old advocating for teen mental health, one inspiring podcast at a time

All images provided by Prudential Emerging Visionaries

Collins after being selected by Prudential Emerging Visionaries

True

A changemaker is anyone who takes creative action to solve an ongoing problem—be it in one’s own community or throughout the world.

And when it comes to creating positive change, enthusiasm and a fresh perspective can hold just as much power as years of experience. That’s why, every year, Prudential Emerging Visionaries celebrates young people for their innovative solutions to financial and societal challenges in their communities.

This national program awards 25 young leaders (ages 14-18) up to \$15,000 to devote to their passion projects. Additionally, winners receive a trip to Prudential’s headquarters in Newark, New Jersey, where they receive coaching, skills development, and networking opportunities with mentors to help take their innovative solutions to the next level.

For 18-year-old Sydnie Collins, one of the 2023 winners, this meant being able to take her podcast, “Perfect Timing,” to the next level.

Since 2020, the Maryland-based teen has provided a safe platform that promotes youth positivity by giving young people the space to celebrate their achievements and combat mental health stigmas. The idea came during the height of Covid-19, when Collins recalled social media “becoming a dark space flooded with news,” which greatly affected her own anxiety and depression.

Knowing that she couldn’t be the only one feeling this way, “Perfect Timing” seemed like a valuable way to give back to her community. Over the course of 109 episodes, Collins has interviewed a wide range of guests—from other young influencers to celebrities, from innovators to nonprofit leaders—all to remind Gen Z that “their dreams are tangible.”

That mission statement has since evolved beyond creating inspiring content and has expanded to hosting events and speaking publicly at summits and workshops. One of Collins’ favorite moments so far has been raising \$7,000 to take 200 underserved girls to see “The Little Mermaid” on its opening weekend, to “let them know they are enough” and that there’s an “older sister” in their corner.

Of course, as with most new projects, funding for “Perfect Timing” has come entirely out of Collins’ pocket. Thankfully, the funding she earned from being selected as a Prudential Emerging Visionary is going toward upgraded recording equipment, the support of expert producers, and skill-building classes to help her become a better host and public speaker. She’ll even be able to lease an office space that allows for a live audience.

Plus, after meeting with the 24 other Prudential Emerging Visionaries and her Prudential employee coach, who is helping her develop specific action steps to connect with her target audience, Collins has more confidence in a “grander path” for her work.

“I learned that my network could extend to multiple spaces beyond my realm of podcasting and journalism when industry leaders are willing to share their expertise, time, and financial support,” she told Upworthy. “It only takes one person to change, and two people to expand that change.”

Prudential Emerging Visionaries is currently seeking applicants for 2024. Winners may receive up to \$15,000 in awards and an all-expenses-paid trip to Prudential’s headquarters with a parent or guardian, as well as ongoing coaching and skills development to grow their projects.

If you or someone you know between the ages of 14 -18 not only displays a bold vision for the future but is taking action to bring that vision to life, click here to learn more. Applications are due by Nov. 2, 2023.
Music

## 13-yr-old's completely unique 'Bohemian Rhapsody' rendition was so great it even wowed Queen

### Angelina Jordan's AGT performance was instantly legendary.

Angelina Jordan blew everyone away with her version of 'Bohemian Rhapsody."

At Upworthy, we've shared a lot of memorable "America's Got Talent" auditions, from physics-defying dance performances to jaw-dropping magic acts to heart-wrenching singer-songwriter stories. Now we're adding Angelina Jordan's "AGT: The Champions" audition to the list because wow.

Jordan came to "AGT: The Champions" in 2020 as the winner of Norway's Got Talent, which she won in 2014 at the mere age of 7 with her impressive ability to seemingly channel Billie Holiday. For the 2020 audition, she sang Queen's "Bohemian Rhapsody," but a version that no one had ever heard before.

With just her Amy Winehouse-ish voice, a guitar and a piano, Jordan brought the fan-favorite Queen anthem down to a smooth, melancholy ballad that's simply riveting to listen to.

Especially considering that Jordan was only 13 years old when she did this.

Watch:

What this video doesn't show is Heidi Klum hitting the Golden Buzzer faster than you can say, "Nothing really matters to me." The judges were blown away by Jordan's performance, as were the people in the comments.

"That's a ONE in A BILLION voice right there. Just amazing," wrote one commenter.

"I am typically not a fan of songs being redone particular to such a magnitude," shared another. "They almost always fall short of the original. But to completely rearrange a song in the manner that she has, from a legend, and then make you forget about how the original even sounded because her rendition is so good is utterly amazing."

"As Freddie once said, 'Do whatever you want with my music as long as you don't make it boring.' I think he'd really like this," shared another.

Though Queen's lead vocalist Freddie Mercury is no longer with us, the band did offer words of praise for Jordan's performance, retweeting her audition video with the comment, "Wow! What a rendition of #BohemianRhapsody."

"Bohemian Rhapsody" is such an iconic song, it's hard for anyone to do a cover of it justice. But 13-year-old Angelina Jordan managed it masterfully.

Jordan would move on to the Top 10 in "AGT: The Champions," and though she didn't take home the top prize, she did impress the audience with another classic rock tune, Elton John's "Goodbye Yellow Brick Road." You can enjoy that performance below, and you can follow Angelina Jordan—who is now 17 and still singing her heart out—on YouTube and TikTok.

Become Angelina's patron at Patreon! https://www.patreon.com/angelinajordanThis performance on Angelina Jordan's TikTok - https://www.tiktok.com/@angelinajor...
Education

## 3,700-year-old Babylonian stone tablet gets translated, changes history

### They were doing trigonometry 1500 years before the Greeks.

via UNSW

Dr. Daniel Mansfield and his team at the University of New South Wales in Australia have just made an incredible discovery. While studying a 3,700-year-old tablet from the ancient civilization of Babylon, they found evidence that the Babylonians were doing something astounding: trigonometry!

Most historians have credited the Greeks with creating the study of triangles' sides and angles, but this tablet presents indisputable evidence that the Babylonians were using the technique 1,500 years before the Greeks ever were.

Mansfield and his team are, understandably, incredibly proud. What they discovered is that the tablet is actually an ancient trigonometry table.

Mansfield said:

"The huge mystery, until now, was its purpose – why the ancient scribes carried out the complex task of generating and sorting the numbers on the tablet. Our research reveals that Plimpton 322 describes the shapes of right-angle triangles using a novel kind of trigonometry based on ratios, not angles and circles. It is a fascinating mathematical work that demonstrates undoubted genius."

"The tablet not only contains the world's oldest trigonometric table; it is also the only completely accurate trigonometric table, because of the very different Babylonian approach to arithmetic and geometry. This means it has great relevance for our modern world. Babylonian mathematics may have been out of fashion for more than 3,000 years, but it has possible practical applications in surveying, computer graphics and education. This is a rare example of the ancient world teaching us something new."

The tablet predates Greek astronomer Hipparchus, who has long been regarded as the father of trigonometry. Mansfield's colleague, Norman Widberger, added:

"Plimpton 322 predates Hipparchus by more than 1,000 years. It opens up new possibilities not just for modern mathematics research, but also for mathematics education. With Plimpton 322 we see a simpler, more accurate trigonometry that has clear advantages over our own."
"A treasure trove of Babylonian tablets exists, but only a fraction of them have been studied yet. The mathematical world is only waking up to the fact that this ancient but very sophisticated mathematical culture has much to teach us."

People were understandably excited by the news.

Some mathematicians actually think studying the Babylonians back then could help us improve the way we do trigonometry today.

Of course, there were the haters...

But all in all, Twitter users were pretty impressed with the Babylonians' skills.

And they figured it out 3,700 years ahead of me...and counting.— Marty (@Marty) 1503631905

Congratulations to Dr. Mansfield and his team on their incredible discovery... and for making trigonometry exciting!

Joy

## 'Couple' was asked what they love about each other. Turns out they're siblings with a beautiful bond.

### This is honestly better than most romantic love stories.

Sometimes a sibling bond transcends all else.

"Love" is one of the most powerful words in the English language, yet it's also one of the most broadly defined. We use the word "love" for so many things that are neither the same nor equal—our families, our friends, our romantic partners, our hobbies—even our favorite foods.

When we think of a "love story," we almost exclusively imagine a tale of romance, but that's not the only kind of love story there is. Sometimes the strongest, most meaningful loves of our lives aren't romantic at all.

David Shane creates videos in which he approaches couples in public and asks them to share three things they love about each other, resulting in some major #couplegoals moments. But one "couple" he approached had a surprising answer to that question, one that moved both them and the people watching the video afterward to tears.

Blane approached a man and woman sitting on a bench at a mall and asked his signature question—"Excuse me, could you give me three things you love about each other?" The woman responded, "Well, this is my brother," and proceeded to share that she loved that they were related and that they care about each other—typical family stuff. But as she started elaborating, the beautiful bond they share became more and more apparent.

This is one you just have to watch:

People were understandably moved seeing this brother and sister express their love for one another through serious life challenges.

"This is what love looks like. 🥹 What a truly beautiful sibling relationship, 😭🫶🏽" wrote one commenter.

"I gotta stop watching these right after I do my makeup," wrote another.

"Gosh, I love questions like this that remind us to SEE two people sitting in a mall as the true, precious humans they are," shared another. "We walk past people every day, all day long and never get to know their story. There must be so many stories we miss. This is the beauty of social media. I wish both of these sweet souls the very best. So glad they have each other."

Many of us have people with whom we share a deep connection but may not always share our feelings freely. This video is a good reminder to let our loved ones know what they mean to us and to treasure all the love stories in our lives, whether romantic, platonic or familial.

Identity

## Man teaches disability awareness by using sign language to communicate with deaf pitbull

### Christopher Hannah and Cole the Deaf Dog have inspired children and veterans for over 6 years.

Chris Hannah and Cole entertain a group of kids.

Six years ago, Cole was a deaf pitbull deemed “broken” and passed up by countless families at the South Jersey Regional Animal Shelter. But in April of 2017, he was adopted by Chris Hannah, a public school music teacher and they’ve been changing lives ever since.

Chris, with the help of his deaf nephew, taught the dog sign language, and they began doing presentations in schools, teaching kids that it’s okay to be different and helping them to be courageous and kind. They also help them reflect on their feelings of “brokenness” to learn self-acceptance and compassion. In their performances, Chris and Cole demonstrate that disabilities are a superpower by showing that a dog can learn sign language.

Cole is also a hospice therapy volunteer and the official mascot of the New Jersey Veterans Memorial Home.

“This is what we do: inspiring children that anything is possible if you just believe in YOU. We are about disability awareness, about changing the way the world thinks, and about making a difference by being different. Let’s all share our similarities and celebrate what makes us unique,” Chris captioned a recent video of him and Cole performing at a school presentation.

@deafcole

#deafdog #deafdogsoftiktok #rescuedog #shelterdog #fypシ

Here’s Cole working with his friend, Alice.

@deafcole

Deaf Dog Rockstars🤟 #dogsoftiktok #pitbullsoftiktok #deafdog #fypシ

Cole may be unable to hear, but he’s pretty good at moving to the music.

@deafcole

This is How We Do It #therapydog #dogsoftiktok #pitbullsoftiktok #deafdog #musicteacher #foryou

Earlier this year, Cole was awarded the Dog of the Year Award from the ASPCA for being “an ambassador for people and pets with disabilities through the Team Cole Project.”

Joy

## 12 non-threatening leadership strategies for women

### We mustn't hurt a man's feelings.

With permission from Sarah Cooper.

Men and the feels.

Note: This an excerpt is from Sarah Cooper's book, How to Be Successful Without Hurting Men's Feelings.

In this fast-paced business world, female leaders need to make sure they're not perceived as pushy, aggressive, or competent.

One way to do that is to alter your leadership style to account for the fragile male ego.

Should men accept powerful women and not feel threatened by them? Yes. Is that asking too much?

IS IT?

Sorry, I didn't mean to get aggressive there. Anyhoo, here are twelve non-threatening leadership strategies for women.

Encourage.

With permission from Sarah Cooper.

When setting a deadline, ask your coworker what he thinks of doing something, instead of just asking him to get it done. This makes him feel less like you're telling him what to do and more like you care about his opinions.

Sharing ideas.

With permission from Sarah Cooper.

When sharing your ideas, overconfidence is a killer. You don't want your male coworkers to think you're getting all uppity. Instead, downplay your ideas as just "thinking out loud," "throwing something out there," or sharing something "dumb," "random," or "crazy."

Email requests.

With permission from Sarah Cooper.

Pepper your emails with exclamation marks and emojis so you don't come across as too clear or direct. Your lack of efficient communication will make you seem more approachable.

Idea sharing.

With permission from Sarah Cooper.

If a male coworker steals your idea in a meeting, thank him for it. Give him kudos for how he explained your idea so clearly. And let's face it, no one might've ever heard it if he hadn't repeated it.

Sexism.

With permission from Sarah Cooper.

When you hear a sexist comment, the awkward laugh is key. Practice your awkward laugh at home, with your friends and family, and in the mirror. Make sure you sound truly delighted even as your soul is dying inside.

Mansplain.

With permission from Sarah Cooper.

Men love explaining things. But when he's explaining something and you already know that, it might be tempting to say, "I already know that." Instead, have him explain it to you over and over again. It will make him feel useful and will give you some time to think about how to avoid him in the future.

Mistakes.

With permission from Sarah Cooper.

Pointing out a mistake is always risky so it's important to always apologize for noticing the mistake and then make sure that no one thinks you're too sure about it. People will appreciate your "hey what do I know?!" sensibilities.

Promotions.

With permission from Sarah Cooper.

Asking your manager for a promotion could make you seem power- hungry, opportunistic, and transparent. Instead, ask a male coworker to vouch for you. Have your coworker tell your manager you'd be great for the role even though you don't really want it. This will make you more likely to actually get that promotion.

Rude.

With permission from Sarah Cooper.

Sometimes not everyone is properly introduced at the start of a meeting. Don't take it personally even if it happens to you all the time, and certainly don't stop the meeting from moving forward to introduce yourself. Sending a quick note afterward is the best way to introduce yourself without seeming too self-important.

Interruptions.

With permission from Sarah Cooper.

When you get interrupted, you might be tempted to just continue talking or even ask if you can finish what you were saying. This is treacherous territory. Instead, simply stop talking. The path of least resistance is silence.

Collaboration.

With permission from Sarah Cooper.

When collaborating with a man, type using only one finger. Skill and speed are very off-putting.

Disagreements.

With permission from Sarah Cooper.

When all else fails, wear a mustache so everyone sees you as more man-like. This will cancel out any need to change your leadership style. In fact, you may even get a quick promotion!

In conclusion...

With permission from Sarah Cooper.

Many women have discovered the secret power of non-threatening leadership. We call it a "secret power" because no one else actually knows about it. We keep our power hidden within ourselves so that it doesn't frighten and intimidate others. That's what makes us the true unsung heroes of the corporate world.