ADVERTISEMENT

We might act like Muppets sometimes, but we’re nowhere near as good at counting as Count von Count. One! Two! Three! Hahaha. And that’s more or less where our worldly wisdom with numbers ends.

(Un)fortunately, we’re not the only ones whose brains sometimes derp out and throw their math skills out of whack! And that’s what the ‘They didn’t do the math’ subreddit is all about. It documents all of the biggest math fails on the net and all of the times people messed up when doing school-level counting. (Just remember not to mix this community up with its counterpart, the ‘They did the math’ subreddit.)

Check out some of the funniest ‘They didn’t do the math posts’ and upvote your fave pics by giving them a big old upvote. Do you have any embarrassing math fails to share with all the other Pandas? Drop us a comment below. Who said that math can’t be fun?!

#3

A Penny A Day For A Year Will Get You Nowhere

A Penny A Day For A Year Will Get You Nowhere

GustavGarlicBread Report

Add photo comments
POST
skylerharris08 avatar
Skyler Harris
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I know how the guy/girl thought it was 9,125 dollars with the quarter. Because he probably did 25x365 and not 0.25x365

View More Replies...
View more commentsArrow down menu

The subreddit has over 24.3k members and has been active for 6 and a half years at the time of writing. And the community is all about making your inner numbers’ wiz groan and cringe. There’s nothing like feeling like a genius at math when you compare yourself to the worst of the worst, is there?

But suppose that being better than the worst isn’t enough for you. You like a challenge. You enjoy improving yourself. Pushing past your limits. You’re a Panda, after all! Luckily, there are countless (pun not intended) free and paid resources online to help you sharpen your skills with numbers. From big names like Khan Academy to small scale websites and projects that you’ll find hiding in the cracks of the internet, right in-between posts about cats.

ADVERTISEMENT

While some peeps have an easier time learning math, I sincerely believe that everyone can reach the genius tier if they put in enough time, effort, and focus. I for one was really awesome at math when I started school (multiplying stuff was my bread and butter). However, I started struggling when they started throwing in letters and weird concepts into my calculations. I’m sure that more than one of you has been there, dear Readers.

But one thing that I learned was how much carving out an hour or two for practicing basic math problems helped me out. That and knowing some amazing math wizards who explain to you the illogical logic behind numbers. TL;DR—practice makes perfect and soon enough you’ll be a Muppet like Count von Count.

ADVERTISEMENT
#9

Ah Yes, Calculation

Ah Yes, Calculation

EkskiuTwentyTwo Report

Add photo comments
POST
csabahegeds avatar
Csaba Hegedűs
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Well, if he sleeps just three hours less, then it means he can drive for 27 hours per day...

View More Replies...
View more commentsArrow down menu
ADVERTISEMENT
#11

What A Genius

What A Genius

lukeber4 Report

Add photo comments
POST
iajdini avatar
Bardhi's Dad
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I'm sure he is not trolling, so it means that the second solution is correct

View more commentsArrow down menu
#14

Yep

Yep

migel210 Report

Add photo comments
POST
mollyrachelporter avatar
crabcrab avatar
Hans
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Yes. And one kilogram of feathers weights more than one kilogram of rocks, as we all discussed when we were six years old. Besides: who would like a shiny bullet proof vest?

christianbradshaw_1 avatar
Christian Bradshaw
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Also, diamond would isn't very tough. It's hard, but would shatter under the impact of the bullet, and the shards would impale the wearer. Game Theory did a video on it. To help, here's an analogy: Take a glass bottle, and a plastic bottle. The glass bottle is harder, yes? You can squeeze the plastic, but the glass remains firm. Now, throw both bottles at a wall. Which will break? The glass, since it's not as tough. The plastic is tougher than the glass, but not as hard.

ojaswinirtripathi avatar
Kitty Twinkle
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I watched that video! It explained how diamond could shatter if you hit it at a tree because it had a low toughness. Iron is optimum and preferable because of its high toughness and hardness, while gold was correctly depicted as a really bad material for tools or armour.

Load More Replies...
peterkelly_1 avatar
Peter Kelly
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Could this exchange be any more wrong? Diamond is not a metal, its hardness is not related to impact resistance (even if you could create a continuous sheet), and I have no idea what the anonymous person was thinking (a carat weighs about 0.2g and the density is about 5 times that of water).

amandacrnilsson avatar
DogMom
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Second guy failed math but first guy failed chemistry. Diamonds are carbon not metal.

tatummuses avatar
Monty Is Fiennes
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

yes because law enforcement agencies will be able to afford all those diamond bullet proof vests....

martti avatar
ML
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I am more wondering about diamond being a metal

chrissydormeier avatar
Paizleypie
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Which is heavier . . . A pound of diamonds or a pound of feathers?

chi-weishen avatar
chi-wei shen
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Sometimes a stupid reply to a stupid statement sounds like an intentional joke.

bad-transmission avatar
Dexxy
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Y'all realize that this post is perfect trolling as it's from 4c... ahh whatever. The less you know, the better you sleep.

dks001 avatar
DKS 001
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Diamond fashion - bullet proof suit. If you have that kind of money, that is. http://www.dudeiwantthat.com/style/clothing/diamond-armor-32-million-bulletproof-suit.asp

lordnazar avatar
Scyth
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

He just discovered a way to create a black hole on earth.

97gabriel avatar
Gabriel
Community Member
2 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This is both chemistry and math fail, every time someone says diamond is a metal ascience book burns

s-kdresner avatar
Callista pierce
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm where have i heard this before: is one pound of feathers lighter than one pound of bricks? i should think not but one pound of zippo sure is a little lighter

aarohanjaianand avatar
Aarohan Jai Anand
Community Member
3 years ago

This comment has been deleted.

heynsdesigns avatar
Shirley Heyn
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Where are these people getting their education? And, they're breeding. . . this is scary!

inkslingerkate avatar
M Kate McCulloch
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

hahahahahahahhahhaaaa oh my. People really think this way? I mean there are some puzzlers out there that once you know the answer you kick yourself because it's so obvious, but this is just... I mean... Do people really think this way???

lynnnoyes avatar
elfin
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

So, which is heavier? A pound of feathers or a pound of lead?

ieramanit avatar
Tina-Marie Tarrant
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Ah, the old Moron vs Science saga!!! Last I checked Diamonds weren't metal, either.

peppercat45 avatar
Carole Hamilton
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

omg - might also be a tad expensive to use diamonds don't ya think

indraservo avatar
Indra Servo
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Brittleness, you can't scratch diamond but a single smack with hammer will shatter it easily

jribax avatar
JRibax
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This one is interesting. Where to start? The idea of bulletproof diamonds? the diamonds being a metal? the heavyness of disproportionate weight? And finally, 15 grams of what??? Such suspense...

nickdesmedt avatar
Spinaap
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

nobody anoyed about the "hardest metal" part ... metal, it's carbon, pure carbon ... sorry, had to say it

johanna_zamora avatar
Grumble O'Pug
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

When you not only don’t know what you ate talking about, but bray it to the world

navybluebandana avatar
Navy Blue Bandana
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

everything about this is just wrong. Diamonds are not metal, 1g does not = 15 g, and the answer is HAVE YOU SEEN HOS MUCH DIAMONDS COST???? THEY ARE A PRECIOUS JEWEL.

meyowmix avatar
Colin L
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Once again, Britain's stupid gets upstaged by good old-fashioned American stupidity.

katd_1 avatar
Malakai
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

The second guy COULD be technically correct if he means the volume of diamond equals so much weight, but it just sounds stupid the way he phrased it. A pound of feathers may weigh as much as a pound of lead, but a cup of lead is always heavier than a cup of feathers, so to speak

sujanchanthiran avatar
BoredPanda is awesome
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

next thing they say is that they know this because they have a masters degree

View More Replies...
View more commentsArrow down menu
#17

Yay! We All Win

Yay! We All Win

plipyplop Report

Add photo comments
POST
bryguy369 avatar
bryguy
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It's scary when they double down and try to explain how they are right lol

View More Replies...
View more commentsArrow down menu
#19

How Many Trips Back To The Store?

How Many Trips Back To The Store?

tonyoncoffee Report

#20

Ah Yes, The 500 People Population Of The U. S.

Ah Yes, The 500 People Population Of The U. S.

howiemandealt Report

ADVERTISEMENT
#21

Once A Day For Whole Year

Once A Day For Whole Year

TheStangun Report

#24

For The 0.01th Time?

For The 0.01th Time?

thatgayguy12 Report

Add photo comments
POST
crabcrab avatar
Hans
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And even the testing math is not true, as positive rates do not simply scale with the number of tests but are dependent on many factors.

View More Replies...
View more commentsArrow down menu
#25

Hmm...

Hmm...

mavolw Report

#26

How Do I Take Advantage Of This Special?

How Do I Take Advantage Of This Special?

grrrr12344 Report

#27

When Did Free Become So Expensive?

When Did Free Become So Expensive?

reddit.com Report

#28

Please Explain... Yes...

Please Explain... Yes...

XLRIV48 Report

#29

Only 4% Of The People Wash Their Hands?

Only 4% Of The People Wash Their Hands?

LemurFemurr Report

Add photo comments
POST
chi-weishen avatar
chi-wei shen
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I still hope the numbers by CDC are wrong. Such a low percentage sounds outright disgusting.

View More Replies...
View more commentsArrow down menu
#30

Communicative Property Is Anger

Communicative Property Is Anger

cckarate7 Report

ADVERTISEMENT
#32

Valentine's Day Instant Baby Or That Elusive 4th Trimester Pregnancy

Valentine's Day Instant Baby Or That Elusive 4th Trimester Pregnancy

guyheyguy Report

Add photo comments
POST
bryguy369 avatar
bryguy
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Anyone who puts "lmfao" after every sentence immediately goes down 100 IQ

View More Replies...
View more commentsArrow down menu
#33

Abc Did Not Do The Math

Abc Did Not Do The Math

fearclutchy Report

Add photo comments
POST
potterheadunicorn avatar
Alex Fierro
Community Member
3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I'm guessing you could pick more than one option in the survey? It would make sense if the graph wasn't a pie chart

View More Replies...
View more commentsArrow down menu
#34

Social Distancing

Social Distancing

adamlm Report

#35

Wow! What A Great Deal!.....wait....

Wow! What A Great Deal!.....wait....

fuzzy_devil_dicks Report

#36

Pemdas

Pemdas

Finnr77 Report

#38

Shouldn't A Vp At A Mortgage Company Understand How Compounding Interest Works?

Shouldn't A Vp At A Mortgage Company Understand How Compounding Interest Works?

C00LST0RYBRO Report

#39

Oof

Oof

EyewarsTheMangoMan Report

Add photo comments
POST
potterheadunicorn avatar
Alex Fierro
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

can someone,,, explain what is going on here??? like, I get it, but I also don't - obviously it's wrong but where is the error?

View More Replies...
View more commentsArrow down menu
#40

Off By 100x. Still Way Too High But Holy Crap How Do You Mess This Up?

Off By 100x. Still Way Too High But Holy Crap How Do You Mess This Up?

Whos_Sayin Report

ADVERTISEMENT
#41

One In Four = Most??

One In Four = Most??

DearTereza Report

Add photo comments
POST
iajdini avatar
Bardhi's Dad
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This happens often, when journalists uses phrases without thinking of the meaning and editors are incompetent. Believe me, I know what I'm saying, I'm in the branch

View More Replies...
View more commentsArrow down menu
#42

Yummy Pie

Yummy Pie

y0mayne Report

#44

Bbc Didn’t Do The Math

Bbc Didn’t Do The Math

fat-jonesy Report

#45

Actually The Margin Of Error Would Be +/- 650,000 Finns, It's The Population Of Finland Which Is Censused Here, Not The World

Actually The Margin Of Error Would Be +/- 650,000 Finns, It's The Population Of Finland Which Is Censused Here, Not The World

SyraEdit Report

#48

Eating More For Less

Eating More For Less

King-Archdemon Report

Add photo comments
POST
samlomb avatar
Samantha Lomb
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

probably priced by the person who thinks 1/3 is less than 1/4 because 3 is less than 4

View more commentsArrow down menu
#49

Close Enough. Put It Up

Close Enough. Put It Up

WeirdAvocado Report

Add photo comments
POST
iajdini avatar
Bardhi's Dad
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

You can save 5.09 if you buy approximately 1.65 of that item. You're welcome

View more commentsArrow down menu
#50

When You Try To Correct Someone But You're Wrong

When You Try To Correct Someone But You're Wrong

reddit.com Report

See Also on Bored Panda
#51

Apparently 4+2 = 7

Apparently 4+2 = 7

RepliedDawn Report

#53

One Cookie Is Healthier? But Which One?

One Cookie Is Healthier? But Which One?

AUGA3 Report

#57

If You Plug Numbers In The Wrong Part Of The Equation, The Answer Can Be Anything You Want

If You Plug Numbers In The Wrong Part Of The Equation, The Answer Can Be Anything You Want

goofyonlinepersona Report

#58

At A Local Eatery And I Saw, Written On A Box, This Attempt At (What Appears To Be) A Math Problem...

At A Local Eatery And I Saw, Written On A Box, This Attempt At (What Appears To Be) A Math Problem...

campbell-1 Report

#59

Runescape Player Calculates Subscriber Money

Runescape Player Calculates Subscriber Money

twitchinstereo Report

Add photo comments
POST
leodomitrix avatar
Leo Domitrix
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And suddenly the 2008 financial crash is explained. This is "business math"....

View more commentsArrow down menu
#60

Butterfingers On The Calculator

Butterfingers On The Calculator

MolarPear Report

See Also on Bored Panda
#62

Uh Huh Hmmmm. I’ll Take 2 Sets Of Three’s Thanks!

Uh Huh Hmmmm. I’ll Take 2 Sets Of Three’s Thanks!

budge1988 Report

Add photo comments
POST
beejayw avatar
Ben Smith
Community Member
3 years ago

This comment has been deleted.

View More Replies...
View more commentsArrow down menu
#63

Flight Didn’t Take Quite This Long...their Math Was A Little Off

Flight Didn’t Take Quite This Long...their Math Was A Little Off

justthetipping Report

#64

I Don’t Think Pie Charts Work Like That

I Don’t Think Pie Charts Work Like That

breakfastofachampion Report

#65

How Much Money Is Disney Losing Due To Corona?

How Much Money Is Disney Losing Due To Corona?

masterzeus2 Report

Add photo comments
POST
bp_10 avatar
WilvanderHeijden
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

But Disney fired all staff and has almost no expenses. So they will deduct their "losses" in the next taxdeclaration and they still end up making profit.

View more commentsArrow down menu
#66

Time Divided By Distance Gets You Units Of Distance Over Time? Makes Sense To Me

Time Divided By Distance Gets You Units Of Distance Over Time? Makes Sense To Me

HamMan_42 Report

Add photo comments
POST
veromorales avatar
Vero Morales
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Mmmbut if I count the time that I spend in my shoes , it's usually faster hop or jump

View more commentsArrow down menu
#67

Someone Caught The Ladder Before It Fell, So There Was No Need To Find The Solution

Someone Caught The Ladder Before It Fell, So There Was No Need To Find The Solution

carlos_ch_s Report

Add photo comments
POST
#68

Movie Theater Math Is Hard

Movie Theater Math Is Hard

SodaPressing789 Report

#70

Fabulous Tax Math

Fabulous Tax Math

DudeWithTheStuff Report

See Also on Bored Panda
#71

Man's Got A Ping Going Well Beyond Our Solar System, And This Mf Still Stuck Behind On Mars

Man's Got A Ping Going Well Beyond Our Solar System, And This Mf Still Stuck Behind On Mars

kryptofarmer Report

#72

328 Million X 1 Million = < 500 Million

328 Million X 1 Million = < 500 Million

fruedianslip Report

#75

How Does This Make Sense

How Does This Make Sense

blazikin55 Report

Add photo comments
POST
mdif5150 avatar
Fin Diffenderfer
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

The numbers total 66... I think the person is saying since there's that 66 and there are 6 letters in Corona it's 666? But they could just be an idiot idk

View More Replies...
View more commentsArrow down menu
#77

They Are Selling Each For 1.49$

They Are Selling Each For 1.49$

Tuni09 Report

Add photo comments
POST
kjorn avatar
kjorn
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

but if it's written 21 for $ 3.00... that would be ok

#80

The More I Question Its Origin, The More My Brain Hurts

The More I Question Its Origin, The More My Brain Hurts

AhoyPalloy Report

Add photo comments
POST
mintyminameow avatar
Mewton’s Third Paw
Community Member
3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Walmart always has weird prices like that on their app! I needed cinnamon and the options were to buy one for $4.50 or two for $2.99. I didn’t even look at the unit price, it was probably way off too. I do not need this much cinnamon.

See Also on Bored Panda
#81

They Didn't Do The Math

They Didn't Do The Math

nwmqpa Report

Add photo comments
POST
iajdini avatar
Bardhi's Dad
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

After a short look to that, you don't need to make any further calculation. You just go to another provider

View more commentsArrow down menu
#82

Umm.. Who’s Gonna Tell Him?

Umm.. Who’s Gonna Tell Him?

Nogray02 Report

Add photo comments
POST
peterkelly_1 avatar
Peter Kelly
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I'm pretty sure that 1 trillion is a multiple of a million so, technically, correct.

View More Replies...
View more commentsArrow down menu
#83

Makes Sense

Makes Sense

reddit.com Report

Add photo comments
POST
henrycheves avatar
Henry Cheves
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Okay, the grams are wrong, but the percentages are Daily Values, which means how much of the nutrient you need to get in one day.

View more commentsArrow down menu
#86

At A Loss For How This Works Out

At A Loss For How This Works Out

reddit.com Report

#87

Spotted On Cnn... Not Sure If This Counts But 50,0000

Spotted On Cnn... Not Sure If This Counts But 50,0000

JediIzzie Report

Add photo comments
POST
chimesstreet avatar
Tabitha L
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Why is this a math error? They increased available hospital beds by 50,000.

View More Replies...
View more commentsArrow down menu
#88

Unless They Have Some Sort Of Time Machine

Unless They Have Some Sort Of Time Machine

reddit.com Report

#89

6/Root(2)?

6/Root(2)?

y0mayne Report

Add photo comments
POST