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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?!

#1

Not Age Appropriate

Not Age Appropriate

dedokta Report

Berry Budgie
Community Member
5 years ago

Hehe

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    #2

    Small Brain Moment

    Small Brain Moment

    Jamo999 Report

    I'm a makeup addict
    Community Member
    5 years ago

    oooooh snap!! XDXDXD

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    #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

    Skyler Harris
    Community Member
    5 years ago

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

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    #4

    Not Sure That’s How That Works

    Not Sure That’s How That Works

    Brokenrecords910 Report

    Bardhi's Dad
    Community Member
    5 years ago

    How for God's sake he came to that?

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    #5

    🤦‍♂️

    🤦‍♂️

    AGFNerd247 Report

    Hans
    Community Member
    5 years ago

    Welll...yes. Good luck.

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    #6

    Tipping Ain’t A City In China

    Tipping Ain’t A City In China

    atlienk Report

    Csaba Hegedűs
    Community Member
    5 years ago

    Karen...

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    #7

    Centaur Proportions.

    Centaur Proportions.

    nosville22_PL Report

    Berry Budgie
    Community Member
    5 years ago

    HAHAHAHHA MY FAVOURITE

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    #8

    So Close

    So Close

    --MichaelScott-- Report

    I'm a makeup addict
    Community Member
    5 years ago

    0_0 ok then....

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    #9

    Ah Yes, Calculation

    Ah Yes, Calculation

    EkskiuTwentyTwo Report

    Csaba Hegedűs
    Community Member
    5 years ago

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

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    #10

    Ignore The Comment

    Ignore The Comment

    StupidButAlsoDumb Report

    Bellaaaa
    Community Member
    5 years ago

    😂🤣😂the comment

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    #11

    What A Genius

    What A Genius

    lukeber4 Report

    Bardhi's Dad
    Community Member
    5 years ago

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

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    #12

    At Least They Tried

    At Least They Tried

    shwifti Report

    Berry Budgie
    Community Member
    5 years ago

    Hehe🤣🤣😂

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    #13

    Seems Right To Me..

    Seems Right To Me..

    reddit.com Report

    Berry Budgie
    Community Member
    5 years ago

    HAHAHAH

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    #14

    Yep

    Yep

    migel210 Report

    Bellaaaa
    Community Member
    5 years ago

    ah yes 1g = 15g

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    #15

    Seems About Right

    Seems About Right

    EyewarsTheMangoMan Report

    Bardhi's Dad
    Community Member
    5 years ago

    Math teachers can also be genius sometimes

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    Never miss a story that brings joy to the world. Add us on Google

    #16

    Makes Sense

    Makes Sense

    ivan200520052005 Report

    Hans
    Community Member
    5 years ago

    I need that anti-aging pill!

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    #17

    Yay! We All Win

    Yay! We All Win

    plipyplop Report

    bryguy
    Community Member
    5 years ago

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

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    #18

    Fox Is Making Up Numbers

    Fox Is Making Up Numbers

    itzcookiepvp Report

    Vorknkx
    Community Member
    5 years ago

    Fox making stuff up? NO WAY!

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    #19

    How Many Trips Back To The Store?

    How Many Trips Back To The Store?

    tonyoncoffee Report

    Jo Choto
    Community Member
    5 years ago

    I have to believe this is trolling or I will cry.

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    #20

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

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

    howiemandealt Report

    Hans
    Community Member
    5 years ago

    Back to school. Please!

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    #21

    Once A Day For Whole Year

    Once A Day For Whole Year

    TheStangun Report

    Jo Choto
    Community Member
    5 years ago

    It's going to happen every... single... night.

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    #22

    This Was Not A Joke

    This Was Not A Joke

    cheapasianproducts Report

    chrissy
    Community Member
    5 years ago

    yeah 190

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    #23

    20

    20

    dubnr3d Report

    Brigs
    Community Member
    5 years ago

    You won't be hired because your age exceeds your IQ

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    #24

    For The 0.01th Time?

    For The 0.01th Time?

    thatgayguy12 Report

    Hans
    Community Member
    5 years ago

    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.

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    #25

    Hmm...

    Hmm...

    mavolw Report

    Bardhi's Dad
    Community Member
    5 years ago

    I wonder, if they are stupid, or they think customers are stupid

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    #26

    How Do I Take Advantage Of This Special?

    How Do I Take Advantage Of This Special?

    grrrr12344 Report

    Hans
    Community Member
    5 years ago

    Come with a party of two and share. :)

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    #27

    When Did Free Become So Expensive?

    When Did Free Become So Expensive?

    reddit.com Report

    Hans
    Community Member
    5 years ago

    "Extra free plate: R 10.00"

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    #28

    Please Explain... Yes...

    Please Explain... Yes...

    XLRIV48 Report

    Bardhi's Dad
    Community Member
    5 years ago

    My brain is burning... it's so difficult, OMG

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    #29

    Only 4% Of The People Wash Their Hands?

    Only 4% Of The People Wash Their Hands?

    LemurFemurr Report

    chi-wei shen
    Community Member
    5 years ago

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

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    #30

    Communicative Property Is Anger

    Communicative Property Is Anger

    cckarate7 Report

    Csaba Hegedűs
    Community Member
    5 years ago

    No, actually 50 x 0 is 500, 0 x 50 is... uh... 050?

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    #31

    Tiktokers Can’t Be This Dumb

    Tiktokers Can’t Be This Dumb

    dankmonkeyss Report

    Lord Mysticlaw
    Community Member
    5 years ago

    Ummm...

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    #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

    bryguy
    Community Member
    5 years ago

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

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    #33

    Abc Did Not Do The Math

    Abc Did Not Do The Math

    fearclutchy Report

    Alex Fierro
    Community Member
    5 years ago (edited)

    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

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    #34

    Social Distancing

    Social Distancing

    adamlm Report

    Ray Ceeya (RayCeeYa)
    Community Member
    5 years ago

    IT WORKS!, but only if you can get people to stand in a tetrahedron.

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    #35

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

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

    fuzzy_devil_dicks Report

    Hans
    Community Member
    5 years ago

    1 Comment: "Can I buy them separately?"

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    #36

    Pemdas

    Pemdas

    Finnr77 Report

    Bellaaaa
    Community Member
    5 years ago

    well actually this is correct because 10/2 = 5 and 10+5=15

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    #37

    What A Deal!

    What A Deal!

    jimred5656 Report

    ADHORTATOR
    Community Member
    5 years ago

    No wonder that it is out of stock

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    #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

    Csaba Hegedűs
    Community Member
    5 years ago

    All these cringy motivational posters...

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    #39

    Oof

    Oof

    EyewarsTheMangoMan Report

    Alex Fierro
    Community Member
    5 years ago

    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?

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    #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

    Bardhi's Dad
    Community Member
    5 years ago

    What? You expected math knowledge or logic from Trump supporters?

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    #41

    One In Four = Most??

    One In Four = Most??

    DearTereza Report

    Bardhi's Dad
    Community Member
    5 years ago

    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

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    #42

    Yummy Pie

    Yummy Pie

    y0mayne Report

    WilvanderHeijden
    Community Member
    5 years ago

    Indian government doesn't seem to differ much from the GOP.

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    #43

    You’ll Actually Have $146 But Ok

    You’ll Actually Have $146 But Ok

    quart_knee_ Report

    Lyn Arnold
    Community Member
    5 years ago

    Are the dimes breeding?

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    #44

    Bbc Didn’t Do The Math

    Bbc Didn’t Do The Math

    fat-jonesy Report

    Lord Mysticlaw
    Community Member
    5 years ago

    One recipe is so good it counted twice.

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    #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

    Peter Kelly
    Community Member
    5 years ago

    I suspect this is meant to be humorous...

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    #46

    Time Is Flexible

    Time Is Flexible

    u-ignorant-slut Report

    Fin Diffenderfer
    Community Member
    5 years ago

    Sounds like a joke to me

    #47

    Time Traveler On Showerthoughts

    Time Traveler On Showerthoughts

    Thumbs0fDestiny Report

    Fin Diffenderfer
    Community Member
    5 years ago

    I mean, it is labelled "funny"

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    #48

    Eating More For Less

    Eating More For Less

    King-Archdemon Report

    Samantha Lomb
    Community Member
    5 years ago

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

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    #49

    Close Enough. Put It Up

    Close Enough. Put It Up

    WeirdAvocado Report

    Bardhi's Dad
    Community Member
    5 years ago

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

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    #50

    When You Try To Correct Someone But You're Wrong

    When You Try To Correct Someone But You're Wrong

    reddit.com Report

    julia
    Community Member
    5 years ago

    no? the reply is actually right

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    #51

    Apparently 4+2 = 7

    Apparently 4+2 = 7

    RepliedDawn Report

    Shelli Aderman
    Community Member
    5 years ago

    Trick question for bonus points?

    #52

    Stanford Didn’t Quite Do The Math

    Stanford Didn’t Quite Do The Math

    ThomasTheHanksEngine Report

    chi-wei shen
    Community Member
    5 years ago

    This really hurts.

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    #53

    One Cookie Is Healthier? But Which One?

    One Cookie Is Healthier? But Which One?

    AUGA3 Report

    Francis
    Community Member
    5 years ago

    you're not supposed to eat the plastic around them ...

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    #54

    They Are Always Right

    They Are Always Right

    travradford Report

    Daniel Wang
    Community Member
    5 years ago

    lol his name

    #55

    Graphs Are Hard In The U.k.

    Graphs Are Hard In The U.k.

    Ghost070607 Report

    Aleksandra Elias
    Community Member
    5 years ago

    Done by someone who failed his A-level

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    #56

    Wait A Minute...

    Wait A Minute...

    reddit.com Report

    Anna roberts
    Community Member
    5 years ago

    Some employees do it just to see how long it takes management to notice

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    #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

    K.
    Community Member
    5 years ago

    If this was a vector problem....

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    #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

    Bardhi's Dad
    Community Member
    5 years ago

    This is some high level math I can't understand

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    #59

    Runescape Player Calculates Subscriber Money

    Runescape Player Calculates Subscriber Money

    twitchinstereo Report

    Leo Domitrix
    Community Member
    5 years ago

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

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    #60

    Butterfingers On The Calculator

    Butterfingers On The Calculator

    MolarPear Report

    WilvanderHeijden
    Community Member
    5 years ago

    You get a discount if you eat more of them.

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    #61

    A Bad Representation Of 25%

    A Bad Representation Of 25%

    joshq68 Report

    Luke Williams
    Community Member
    5 years ago

    Umm...

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    #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

    Ben Smith
    Community Member
    5 years ago

    This comment has been deleted.

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    #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

    Leo Domitrix
    Community Member
    5 years ago

    Scenic route?

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    #64

    I Don’t Think Pie Charts Work Like That

    I Don’t Think Pie Charts Work Like That

    breakfastofachampion Report

    Francis
    Community Member
    5 years ago

    ther is so much wrong.. i. can't. process.

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    #65

    How Much Money Is Disney Losing Due To Corona?

    How Much Money Is Disney Losing Due To Corona?

    masterzeus2 Report

    WilvanderHeijden
    Community Member
    5 years ago

    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.

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    #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

    Matthew Braim
    Community Member
    3 years ago

    If you paid in cash, or even by card, the time you spend paying for the car would only be a few minutes at most...? xxx

    #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

    #68

    Movie Theater Math Is Hard

    Movie Theater Math Is Hard

    SodaPressing789 Report

    Bird Mom
    Community Member
    5 years ago

    Covering a downvoted comment. Have a great year everyone!

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    #69

    Very Long Movie...

    Very Long Movie...

    Manduli Report

    Julius Martin
    Community Member
    5 years ago

    hm, 225 hour movie, mustve missed that one

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    #70

    Fabulous Tax Math

    Fabulous Tax Math

    DudeWithTheStuff Report

    WilvanderHeijden
    Community Member
    5 years ago

    The ever present American fear of taxes. Fed by stupid math.

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    #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

    Alex Fierro
    Community Member
    5 years ago

    isn't this about 64 hours-

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    #72

    328 Million X 1 Million = < 500 Million

    328 Million X 1 Million = < 500 Million

    fruedianslip Report

    Alex Fierro
    Community Member
    5 years ago

    also, isn't a trillion a billion times a thousand?

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    #73

    Spotted In Class Today

    Spotted In Class Today

    thedrdu Report

    Lydia Shen
    Community Member
    5 years ago

    ...No. Just...No.

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    #74

    What A Deal!

    What A Deal!

    cckarate7 Report

    chi-wei shen
    Community Member
    5 years ago

    Buy two bottles and pay for two.

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    #75

    How Does This Make Sense

    How Does This Make Sense

    blazikin55 Report

    Fin Diffenderfer
    Community Member
    5 years ago

    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

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    #76

    This Drawing My Friend Just Sent Me

    This Drawing My Friend Just Sent Me

    dj_ordje Report

    Jo Choto
    Community Member
    5 years ago

    Plans for a Tardis? Maybe?

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    #77

    They Are Selling Each For 1.49$

    They Are Selling Each For 1.49$

    Tuni09 Report

    kjorn
    Community Member
    5 years ago

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

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    #78

    Infallible Logic

    Infallible Logic

    nokatydidnt92 Report

    Becca Gizmo the Squirrel
    Community Member
    5 years ago

    Nice try.

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    #79

    Soooo... How Much Cash Back Do I Get?

    Soooo... How Much Cash Back Do I Get?

    TheMillersWife Report

    Mewton’s Third Paw
    Community Member
    5 years ago

    Probably 1.5 percent and it’s just a typo

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    #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

    Mewton’s Third Paw
    Community Member
    5 years ago (edited)

    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.

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    #81

    They Didn't Do The Math

    They Didn't Do The Math

    nwmqpa Report

    Bardhi's Dad
    Community Member
    5 years ago

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

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    #82

    Umm.. Who’s Gonna Tell Him?

    Umm.. Who’s Gonna Tell Him?

    Nogray02 Report

    Peter Kelly
    Community Member
    5 years ago

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

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    #83

    Makes Sense

    Makes Sense

    reddit.com Report

    Henry Cheves
    Community Member
    5 years ago

    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.

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    #84

    And What Of The Other 0.09%?

    And What Of The Other 0.09%?

    reddit.com Report

    Imposmate
    Community Member
    5 years ago

    ?

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    #85

    Yeah, That Don’t Add Up Sir

    Yeah, That Don’t Add Up Sir

    fly72j Report

    julia
    Community Member
    5 years ago

    ?

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    #86

    At A Loss For How This Works Out

    At A Loss For How This Works Out

    reddit.com Report

    Ben Smith
    Community Member
    5 years ago

    It’s called rounding...

    #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

    Mewton’s Third Paw
    Community Member
    5 years ago

    People love mixing in obvious typos with blatant idiocy.

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    #88

    Unless They Have Some Sort Of Time Machine

    Unless They Have Some Sort Of Time Machine

    reddit.com Report

    J Rob
    Community Member
    5 years ago

    24 x 365 x 10 + 48 = 87,648

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    #89

    6/Root(2)?

    6/Root(2)?

    y0mayne Report

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