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.

## 3 organic recipes that feed a family of 4 for under \$7 a serving

### O Organics is the rare brand that provides high-quality food at affordable prices.

A woman cooking up a nice pot of pasta.

Over the past few years, rising supermarket prices have forced many families to make compromises on ingredient quality when shopping for meals. A recent study published by Supermarket News found that 41% of families with children were more likely to switch to lower-quality groceries to deal with inflation.

By comparison, 29% of people without children have switched to lower-quality groceries to cope with rising prices.

Despite the current rising costs of groceries, O Organics has enabled families to consistently enjoy high-quality, organic meals at affordable prices for nearly two decades. With a focus on great taste and health, O Organics offers an extensive range of options for budget-conscious consumers.

O Organics launched in 2005 with 150 USDA Certified Organic products but now offers over 1,500 items, from organic fresh fruits and vegetables to organic dairy and meats, organic cage-free certified eggs, organic snacks, organic baby food and more. This gives families the ability to make a broader range of recipes featuring organic ingredients than ever before.

“We believe every customer should have access to affordable, organic options that support healthy lifestyles and diverse shopping preferences,” shared Jennifer Saenz, EVP and Chief Merchandising Officer at Albertsons, one of many stores where you can find O Organics products. “Over the years, we have made organic foods more accessible by expanding O Organics to every aisle across our stores, making it possible for health and budget-conscious families to incorporate organic food into every meal.”

With some help from our friends at O Organics, Upworthy looked at the vast array of products available at our local store and created some tasty, affordable and healthy meals.

Here are 3 meals for a family of 4 that cost \$7 and under, per serving. (Note: prices may vary by location and are calculated before sales tax.)

O Organic’s Tacos and Refried Beans (\$6.41 Per Serving)

Few dishes can make a family rush to the dinner table quite like tacos. Here’s a healthy and affordable way to spice up your family’s Taco Tuesdays.

Prep time: 2 minutes

Cook time: 20 minutes

Total time: 22 minutes

Ingredients:

1 lb of O Organics Grass Fed Ground Beef (\$7.99)

1 packet O Organics Taco Seasoning (\$2.29)

O Organics Mexican-Style Cheese Blend Cheese (\$4.79)

O Organics Chunky Salsa (\$3.99)

O Organics Taco Shells (\$4.29)

1 can of O Organics Refried Beans (\$2.29)

Instructions:

1. Cook the ground beef in a skillet over medium heat until thoroughly browned; remove any excess grease.

2. Add 1 packet of taco seasoning to beef along with water [and cook as directed].

3. Add taco meat to the shell, top with cheese and salsa as desired.

4. Heat refried beans in a saucepan until cooked through, serve alongside tacos, top with cheese.

O Organics Mexican-style blend cheese.via O Organics

O Organics Hamburger Stew (\$4.53 Per Serving)

Busy parents will love this recipe that allows them to prep in the morning and then serve a delicious, slow-cooked stew after work.

Prep time: 15 minutes

Cook time: 7 hours

Total time: 7 hours 15 minutes

Servings: 4

Ingredients:

1 lb of O Organics Grass Fed Ground Beef (\$7.99)

1 ½ lbs O Organics Gold Potatoes (\$4.49)

3 O Organics Carrots (\$2.89)

1 tsp onion powder

I can O Organics Tomato Paste (\$1.25)

2 cups water

1 yellow onion diced (\$1.00)

1 clove garlic (\$.50)

1 tsp salt

1/4 tsp pepper

2 tsp Italian seasoning or oregano

Instructions:

1. Cook the ground beef in a skillet over medium heat until thoroughly browned; remove any excess grease.

2. Transfer the cooked beef to a slow cooker with the potatoes, onions, carrots and garlic.

3. Mix the tomato paste, water, salt, pepper, onion powder and Italian seasoning in a separate bowl.

4. Drizzle the mixed sauce over the ingredients in the slow cooker and mix thoroughly.

5. Cover the slow cooker with its lid and set it on low for 7 to 8 hours, or until the potatoes are soft. Dish out into bowls and enjoy!

O Organics baby gold potatoes.via O Organics

O Organics Ground Beef and Pasta Skillet (\$4.32 Per Serving)

This one-pan dish is for all Italian lovers who are looking for a saucy, cheesy, and full-flavored comfort dish that takes less than 30 minutes to prepare.

Prep time: 2 minutes

Cook time: 25 minutes

Total time: 27 minutes

Servings: 4

Ingredients:

1 lb of O Organics Grass Fed Ground Beef (\$7.99)

1 tbsp. olive oil

2 tsp dried basil

1 tsp garlic powder

1 can O Organics Diced Tomatoes (\$2.00)

1 can O Organics Tomato Sauce (\$2.29)

1 tbsp O Organics Tomato Paste (\$1.25)

2 1/4 cups water

2 cups O Organics Rotini Pasta (\$3.29)

1 cup O Organics Mozzarella cheese (\$4.79)

Instructions:

1. Brown ground beef in a skillet, breaking it up as it cooks.

2. Sprinkle with salt, pepper and garlic powder

3. Add tomato paste, sauce and diced tomatoes to the skillet. Stir in water and bring to a light boil.

4. Add pasta to the skillet, ensuring it is well coated. Cover and cook for about 10 minutes, stirring occasionally.

5. Remove the lid, sprinkle with cheese and allow it to cool.

O Organics tomato basil pasta sauce and extra virgin olive oil.via O Organics

Health

## Neuroscience learns what Buddhism has known for ages: There is no constant self

### Buddhist Monks have known for thousands of years what science is just now learning: the mind can be changed by training it.

Ven. Thich Thong Hai prays by a statue of Buddha in the garden at the Ventura Buddhist Center.

Proving that science and religion can, in fact, overlap, University of British Columbia researcher Evan Thompson has confirmed the Buddhist teaching of the not-self, or "anatta," is more than just a theory.

"Buddhists argue that nothing is constant, everything changes through time, you have a constantly changing stream of consciousness," he tells Quartz. "And from a neuroscience perspective, the brain and body is constantly in flux. There's nothing that corresponds to the sense that there's an unchanging self."

This reality that nothing stays the same should be liberating, because if people believe it, they'll no longer define themselves by their thoughts or be limited by a fixed idea of who they are. Their possibilities will be endless.

Buddhist Monks have known for thousands of years what science is just now learning: the mind can be changed by training it. Neuroplasticity, as it's called, endows people with the ability to grow and evolve, triumphing over bad habits and becoming more like the individuals they want to be.

Buddha GIF

Giphy Discover & share this Big GIF with everyone you know. GIPHY is how you search, share, discover, and create GIFs.

Still, exactly how consciousness relates to the brain eludes both Buddhism and neuroscience. Buddhists suppose there's an iteration of consciousness that doesn't require a physical body; neuroscientists disagree.

"In neuroscience, you'll often come across people who say the self is an illusion created by the brain," Thompson says. "My view is that the brain and the body work together in the context of our physical environment to create a sense of self. And it's misguided to say that just because it's a construction, it's an illusion."

Joy

## Now's your chance to help someone doing good in your community win \$1000 towards the charity of their choice

### Upworthy and P&G are back with the #ActsOfGood Awards.

Images provided by P&G

Three winners will be selected to receive \$1000 donated to the charity of their choice.

True

Doing good is its own reward, but sometimes recognizing these acts of kindness helps bring even more good into the world. That’s why we’re excited to partner with P&G again on the #ActsOfGood Awards.

The #ActsOfGood Awards recognize individuals who actively support their communities. It could be a rockstar volunteer, an amazing community leader, or someone who shows up for others in special ways.

Do you know someone in your community doing #ActsOfGood? Nominate them between April 24th-June 3rdhere.Three winners will receive \$1,000 dedicated to the charity of their choice, plus their story will be highlighted on Upworthy’s social channels. And yes, it’s totally fine to nominate yourself!

We want to see the good work you’re doing and most of all, we want to help you make a difference.

While every good deed is meaningful, winners will be selected based on how well they reflect Upworthy and P&G’s commitment to do #ActsOfGood to help communities grow.

That means be on the lookout for individuals who:

Strengthen their community

Make a tangible and unique impact

Go above and beyond day-to-day work

The #ActsOfGood Awards are just one part of P&G’s larger mission to help communities around the world to grow. For generations, P&G has been a force for growth—making everyday products that people love and trust—while also being a force for good by giving back to the communities where we live, work, and serve consumers. This includes serving over 90,000 people affected by emergencies and disasters through the Tide Loads of Hope mobile laundry program and helping some of the millions of girls who miss school due to a lack of access to period products through the Always #EndPeriodPoverty initiative.

Visit upworthy.com/actsofgood and fill out the nomination form for a chance for you or someone you know to win. It takes less than ten minutes to help someone make an even bigger impact.

Democracy

## California bans 'junk' fees on tickets, hotels, cruises, restaurant bills with new law

### "The law is simple: the price you see is the price you pay."

A woman is sad after getting charged a huge junk fee.

Just about everyone has had the depressing experience of sitting through a long queue to get concert tickets, only to find when they were ready to check out, the price was 30 to 40% higher because of service fees added by the ticketing company.

People often have the same experience when ordering food through an app, only to see a massive service fee applied right before they're ready to place their order.

These service fees, known by many as “junk fees,” are popping up everywhere these days, from surprise resort fees charged when checking out of a hotel to a 4% surcharge on a dinner bill that the restaurant added so you can help pay for their employees' healthcare.

The good news for people in California is that a new bill will go into effect on July 1st that bans hidden or unexpected fees on everything from concert tickets to cruise packages. Senate Bill 478 (SB 478) makes it illegal for businesses to advertise or list a price for a good or service that does not include all required fees or charges other than certain government taxes and shipping costs.

“Our price transparency law is about clear and honest communication with consumers so consumers can make the financial choices that are best for them and their families. This new guidance provides information for businesses across California to ensure that clear answers are available, particularly for small businesses,” California Attorney General Rob Bonta said in a statement. “The law is simple: the price you see is the price you pay. Laws work when everyone can comply. I am pleased that we can offer this guidance to help facilitate compliance with the law and make a more fair and level marketplace for businesses and consumers."

A 2023 survey of Americans found that 2 out of 3 said they were paying more in surprise charges now than they had five years earlier.

The bill is good news for consumers who want to make thoughtful decisions about how they spend their money, especially when inflation has made it a lot harder to stretch a dollar. However, the bill probably won’t make things any cheaper. Businesses most likely won’t stop charging these hidden fees; instead, they will be rolled into the listed price instead of popping up out of nowhere right before you hit the “pay now” button.

State Senator Bill Dodd from Napa, the bill's co-author, stated its goals: “A consumer shouldn’t discover hidden fees made up by a business when they pay their bill.”

As the old saying goes, “As goes California, so goes the nation,” and when companies are forced to alter their pricing and marketing in America's most populous state, it’s bound to create changes for consumers across the country. The new law could be the first shot in a larger war against junk fees.

In 2023, President Biden called out Ticketmaster and others who charge "junk fees" in his State of the Union address, claiming he’ll get “rid of junk fees, those hidden fees at the end of your bill that are there without your knowledge.” In his 2022 State of the Union speech, Biden criticized the hotel industry for surprise fees at checkout. "We’ll ban surprise ‘resort fees’ that hotels tack on to your bill. These fees can cost you up to \$90 a night at hotels that aren’t even resorts,” Biden said.

This Federal pressure led several companies, including Live Nation, SeatGeek, xBk, Airbnb, the Pablo Center at the Confluence, TickPick, DICE and the Newport Festivals Foundation, to make their pricing more transparent.

Joy

## Kids asked their parents to 'dance like it's the 80s' and they delivered big time

### Some things you never forget.

@tabathalynnk/TikTok, Photo credit: Canva

They've still got the moves

Ready to get transported back to the Decade of Decadence? Cause this wholesome new TikTok trend is gonna put you right back in the attitude-filled, neon colored post-disco era otherwise known as the 80s.

Specifically, it’s going to take you back to an 80s dance club.

In the trend, kids ask their parents to “dance like it’s the 80s,” as the 1984 track “Smalltown Boy” by the British pop band Bronski Beat plays in the background. The song's high energy tempo mixed with heartbreaking, anguish-ridden lyrics make it a fitting choice to bring us back to the time period.

As for the parents—let's just say that muscle memory kicks in the minute the tune begins to play, and it’s a whole vibe.

Check out Tabatha Lynn's video of her mom, Leanne Lynn, which currently has over 8 million views.

@tabathalynnk My moms 80s dance moves, I wanna be her when I grow up 😍 our kids better not ask us this in 30 years 😂 #80s #momsoftiktok #dancemoves ♬ original sound - Tiktok / IG strategy 🚀

Leanne and Tabatha told TODAY that since going viral, the dance is now a common “topic of conversation in the family text group.”

There are two factors here that folks really seem to connect with.

One: 80s dancing was simple. Just moving to the rhythm, maybe a head bob for some flair or a robot if you’re feeling adventurous. Of course, the 80s had ambitious moves like the worm and the moonwalk, but for the most part it was just about groovin’ to beat.

@marynepi One thing about Ms. Suzanne, shes gonna slay. #fypage #dance #slay #80s #yasqueen #trending #trend ♬ original sound - Tiktok / IG strategy 🚀

Then there’s seeing the parents light up at the chance to go back to the days of their youth.

“I can literally see the young women in these women spring out in fluidity. Love this trend,” one person commented.

@lavaleritaaa Love her 😭 “Se me espeluco el moño” 😂 #80s #momdancechallenge ♬ original sound - Tiktok / IG strategy 🚀

Another seconded, “I love seeing moms remember when they were just themselves.”

Of course, dads are totally rocking this trend too. Check it out:

@chrisbrown711 I dont normally do trends but i got in on this one. How did I do? #fyp #blessed #80sdancechallenge #80smusic #80s ♬ original sound - Tiktok / IG strategy 🚀

The 80s was a time of rapid expansion for music. Much of this we have the birth of MTV to thank for, which subsequently dropped music videos, CDs and a vast array of sub genres straight into the heart of pop culture.

Plus, the 80s brought us the synthesizer, which remains a strangely satisfying sound even in 2024. So while the era might have brought some things that most of us would prefer not to revisit—like acid washed denim and awful, awful hairstyles—some of its gems are truly timeless.

The trend also shows how, even though the weekly outing to a dance hall might be a thing of the past, people inherently want to bust a move. Luckily, there’s no shortage of clubs that cater to someone’s music tastes, no matter the era.

Speaking for 00s teens everywhere…just play the Cha Cha slide and we’ll come a-runnin.

Family

## Categories are great for some things: biology, herbs, and spices, for example.

Image via

But bodies? Well, putting bodies into categories just gets weird. There are around 300 million people in America, but only 12 or so standard sizes for clothing: extra-extra-small through 5x.

## That's why designer Mallorie Dunn is onto something with her belief — people have different bodies and sizing isn't catching up.

Dunn has found that the majority of clothing sizes stop at an extra-large, yet the majority of women in America are over that. "And that just doesn't make sense," she says.

All images via Smart Glamor, used with permission.

Human spice rack, only, a LOT more variations of flava. ;)

That's why she started a project around her clothing label, Smart Glamour, to document the bodies of models according to their sizes — and to show how one size can look very different on different bodies.

In pursuit of creating a fashion environment that's kinder to all bodies, Dunn has dedicated herself to educating consumers about sizing.

First, she found 60 people of 12 different sizes and took their pictures.

### She hoped to show people that 12 sizes don't even come close to capturing the beauty of the human form.

All these models are wearing the same size ... but do they look the same?

"No matter what size you are that's not what dictates your worth or your beauty."

"I had a convo with a friend of mine who was like 'Yeah, if I went from a medium to a large, I'd be fine with it, but if I went from a large to an extra-large, that wouldn't be OK' and I was like, 'Why???' And she had no rational reason behind that," Dunn said, describing a conversation we've all either had, started, or heard. "We've been taught forever that the bigger something sounds, the worse that it is."

### Dunn's project also shows just how arbitrary and narrow-minded clothing sizes are.

Sizes really are just numbers.

Unlike the images we are presented both in clothing ads and in entertainment and media, human beings aren't, as Dunn remarked, "robots who come out on a conveyor belt ... we're all shaped differently."

### The pressure to look one way is obnoxious. And kinda dangerous.

"We've been taught forever that the bigger something sounds, the worse that it is."

There's so much weight — no pun intended — on being the "right" size.

"You put an 'extra' on top of a 'large,' and suddenly it's the end of the world," Dunn said of her experience in fashion sizing. "... And it really doesn't mean anything, it really only means that there's an extra inch of fabric."

One extra inch of fabric.

## 3 in 4 girls report feeling depressed, guilty, or shameful after just three minutes of leafing through a fashion mag.

But I'd like to imagine a world where everyone can try on clothes and leave the emotional burden of worrying about fit to the clothes.

Instead, let's focus on what looks good on our bodies. Let the clothes handle the emotional roller coaster of not fitting, and you just live your life in the body you've been given.

Dunn, who has worked for fashion houses for her whole career, puts it bluntly: "Clothes are not made for all bodies. ... We shouldn't then think when something doesn't fit us that it's somehow our fault."

Dunn's models also have a group on Facebook where they support each other, compliment each other, and generally lift each other up. Model Stephanie describes it this way: "We see the beauty in one another and help each other to recognize our own beauty at the same time." Fashion leading to body optimism and confidence? Yes, please.

And Dunn herself drives a hard line when it comes to feeling good in the skin you've been given. Her philosophy is this: No matter what size you are, that's not what dictates your worth or your beauty.

Identity

## The note said she didn't deserve her promotion. Here's her mic-drop response.

### From a girl who went to MIT anyway.

This story first appeared on the author's Medium and is reprinted here with permission.

Because you're a girl.

I was promoted a few weeks ago, which was great. I got a lot of nice notes from friends, family, customers, partners, and random strangers, which was exciting.

But it wasn't long until a note came in saying, “Everyone knows you got the position because you're a girl." In spite of having a great week at a great company with great people whom I love, that still stung, because it's not the first time I've heard it.

## Every woman who works in tech — heck, likely every woman on Earth — hears “because you're a girl" dozens, if not thousands, of times in her life.

It starts young, of course:

Why can't I join that team? Because you're a girl.

Why can't I study physics? Because you're a girl.

Then, the comments age with you.

Why can't I manage that project? Because you're a girl.

Why can't I join that group? Because you're a girl.

And after you've reached any level of attainment in a profession you love, the comments are used to minimize your success.

Why did you get that award? Because you're a girl.

Why were you chosen to participate in that class? Because you're a girl.

## Like so many women before me, I have shaken off the comment.

I've gotten angry. I've gotten sad. I've doubted myself and my abilities. I've ignored it entirely. I've challenged it. I've recruited support from men and women I respect. Yet every time it stays there in the back of my mind, screaming for attention after every failure or setback.

## But today is the day I've decided to change that.

I did, in fact, get the job because I'm a girl.

A girl who was called "bossy" growing up.

A girl who wasn't afraid to play with the boys.

A girl who didn't hesitate to raise her hand if she knew the answer.

A girl who stood up for other kids.

A girl who was always the first one to volleyball practice and the last to leave.

A girl who was told she was too assertive and aggressive to advance in her career.

A girl who went to MIT anyway.

A girl who asked her company to do more on diversity and inclusion and won't stop pushing until it's truly remarkable.

A girl who has made big mistakes, both personal and professional.

A girl who swings for the fences even when no one is watching.

A girl who puts in hours when other people are asleep

A girl who tells young girls how smart and strong they are.

A girl who hates to lose.

And a girl who won't stand silently while people still use “because you're a girl" as any limitation for girls who want to grow, challenge the status quo, and be something, anything, greater than society tells them they could or should.

So yeah. I guess you could say I got my job because I'm a girl, but not for any of the reasons you might think.

This story first appeared on the author's Medium and is reprinted here with permission.