1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 = ?

Home Forums Yeshiva / School / College / Education Issues 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 = ?

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  • #602523

    YitB
    Member

    Do you think you know the answer to this?

    At first just post an answer, just so we can see what everyone thinks then later we can discuss the reasons.

    It’s really sad to see around the web how many people are getting it wrong.

    #1125319

    TheGoq
    Participant

    I believe the answer is zero.

    #1125320

    nitpicker
    Participant

    14 using algebraic rules for order of operations. but those are a convention for convenience.

    performin in sequence, without knowing or caring about those rules,

    the answer is 0.

    #1125321

    yentingyenta
    Participant

    isnt the answer 0?

    #1125322

    Feif Un
    Participant

    14

    #1125323

    BTGuy
    Participant

    Zero?

    Hi nitpicker.

    You are saying the same equation in Algebra would be 14?

    Can you work that out and demonstrate?

    I am curious.

    #1125324

    nishtdayngesheft
    Participant

    14.

    First you mutliply, thaen you do the addition and subtraction. (Unless the string was in parenthesis)

    #1125325

    sam4321
    Participant

    14, classic PEMDAS .

    #1125326

    Think first
    Member

    Anything times zero is zero.

    #1125327

    Shticky Guy
    Participant

    15×0=0

    #1125328

    But there are no parenthesis in this equation, so the addition/subtraction is equal to the last part. I thought it was 15, may have counted wrong.

    #1125329

    zen3344
    Participant

    1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 =

    14.

    Using order of operations, you’d multiply the last 1 x 0 first, resulting in 0, so you’d have:

    1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1 + 1 + 1 + 0 = 14.

    If, however, the equation was:

    (1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1 + 1 + 1 + 1) x 0 =

    The result is 0, as you would perform the operations in parens FIRST and multiply that result by 0, giving you the result that Think First came up with but incorrectly in this instance.

    #1125330

    zen3344
    Participant

    Sam, for other’s edification:

    P = Parens

    E = Exponents

    M = Multiplication

    D = Division

    A = Addition

    S = Subtraction

    #1125331

    nitpicker
    Participant

    to btguy.

    Hi

    by now others have posted explanations.

    #1125332

    zen3344
    Participant

    Woman Outside…there’s a -1 in there, so it’s 14.

    #1125333

    Avram in MD
    Participant

    The answer is 14.

    but those are a convention for convenience.

    Not really, they’re a convention so that anyone else looking at the equation can be clear what it means. Otherwise, what’s to say we can’t interpret the above as:

    (1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1) – (1 + 1 + 1 + 1 + 1 + 1 + 1*0) = 4

    or

    (1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1) – (1 + 1 + 1 + 1 + 1 + 1 + 1)*0 = 10

    or 0, as several people above said, etc…

    Without a common set of rules and definitions, we can’t have symbolic math!

    #1125334

    ☕️coffee addict
    Participant

    I say 14 also

    Pemdas (Please excuse my dear Aunt Sally)

    #1125335

    Luna Lovegood
    Participant

    the Answer is 0

    #1125336

    nitpicker
    Participant

    to avram in MD

    you seem to be arguing with me, but there is not much difference in what you said and what I said.

    #1125337

    does your dear aunt sally think cherry pies delicious apple pies are too?

    #1125338

    popa_bar_abba
    Participant

    I say PEMDAS also.

    Perchance Embalm My Dog And Swan?

    #1125339

    Avram in MD
    Participant

    nitpicker,

    you seem to be arguing with me, but there is not much difference in what you said and what I said.

    I certainly didn’t intend to bother you with an argument. Convenience (the term you used) indicates something that eases difficulty, but does not imply requirement. I contend that the order of operations are a requirement, not a convenience or “best practice.” To perform the calculation above “in sequence”, therefore in my view, is incorrect. That’s all I was trying to say. Sorry for nitpicking:-)

    #1125340

    dd
    Member

    This is sad. A dispute about a 6th grade arithmetic problem.

    #1125341

    ☕️coffee addict
    Participant

    Moski,

    Huh?

    #1125342

    sam4321
    Participant

    Coffee Addict: it is another mnemonic, Circumference = pi * diameter = cherry pie delicious. Apple Pies are square or round : Area =P * r2,Area = p*r*r.

    #1125343

    haifagirl
    Participant

    Of course it’s 14.

    #1125344

    ☕️coffee addict
    Participant

    Oh cool,

    I never heard that one

    #1125345

    nitpicker
    Participant

    to Avram in MD

    I didn’t mean that having a convention was merely a convenience, but that the particular conventions chosen were for convenience.

    with a different set of rules, you would need far more symbols and annoying and confusing parentheses when writting formulas or equations.

    these rules are convention, not a natural fact of numbers or arithmetic, as you yourself mention.

    #1125346

    BTGuy
    Participant

    Hi nitpicker.

    I really knew how to get the answer. Just wanted to see if you did.

    lol

    ; )

    #1125347

    Luna Lovegood
    Participant

    YitB –

    do have an answer for us or are we gonna be thinking about this problem for the rest of our live wondering what the answer is?

    #1125348

    supergirl613
    Member

    Ok I say either 0 or 3 and I have no clue how you got 14!

    #1125349

    Think first
    Member

    To all those who said fourteen, what’s 15×0? Well that’s the question. There 1+1 10 times that equals 10 then there’s -1 so ur at 9 there’s +1 another 6 of them so let’s see 9+6=15 but boom you want me to multiply that by zero so basicaly its 15×0 and anything times 0 always equals 0. And I’d bet on this.

    read the other replies on this thread. PEMDAS.

    #1125350

    ☕️coffee addict
    Participant

    Ooooh,

    Ill take the bet! (Why did you have to mess it up unnamed mod)

    #1125351

    dullradiance
    Participant

    What is the context of this arithmatic question?

    If I use these symbols on my calculator, the answer displays a zero.

    If I use these symbols in a fortran program, the answer displays a 14.

    If I warn an eight year old that this is a trick question – s/he will answer 14.

    If I ask a grandparent the answer will probably be – Huh?

    If the answer is needed for a d’var torah, the answer could be 13, 14, 15, 5 or zero.

    #1125352

    kbluhm
    Member

    Think First, how much are you willing to bet? Multiplication take precedence over addition and subtraction. First you’d multiply 1 x 0, which is 0. Then you perform all addition and subtraction, which yields 14. I’m not sure why I am writing this as it was clearly stated over and over… yet you somehow managed to overlook it. 😉

    #1125353

    haifagirl
    Participant

    Can I get in on that bet, too? I could also use a little extra money before Pesach! 😉

    #1125354

    nfgo3
    Member

    This is a cute trick for elementary algebra students. If any bochur graduates high school without knowing the answer, there is something seriously wrong with his chinuch.

    #1125355

    supergirl613
    Member

    OK I know 14 comes in the picture and if you do it right, the the answer is clearly 14, and it’s not 1 or 3,4,5,10,13,15 or whatever # you guys wrote. This is how it works:

    1+1+1+1+1+1+1+1+1+1-1+1+1+1+1+1+1×0

    1)multiply the 0 and the 1 at the end of the problem=0(but remember once we multiplied the 1 and the 0 we aren’t using them anymore so they are out of the picture!)

    then u add the 1st 10 1s=10

    Are you with me so far? Because 0+10=10!

    then we have a -1 which everyone(I hope knows)10-1=9

    Ok so now our present answer is 9. so now we are gonna add up the remaining 5 #’s to get 14.

    Did you guys get it?

    I hope it was clear!

    Btw:CLASSIC PEMDAS!!

    #1125356

    YitB
    Member

    @ Luna Lovegood

    “YitB –

    do have an answer for us or are we gonna be thinking about this problem for the rest of our live wondering what the answer is?”

    The answer is 14 using PEMDAS. There is no other correct answer.

    #1125357

    tmlbluedove
    Member

    the answer is 14

    d0 it backwards

    0x1=0 1+1+1+1+1=5 1+1+1+1+1+1+1+1+1+1=10-1=9

    #1125358

    yeshivaguy45
    Participant

    15 you do multiplication first

    1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1+ 1 + 1 + (1×0)

    #1125359

    YW Moderator-42
    Moderator

    42

    #1125360

    🍫Syag Lchochma
    Participant

    and thanks for all the fish.

    #1125361

    haifagirl
    Participant

    yeshivaguy45: Read the problem again. You missed a minus.

    #1125362

    You need an Einstein to calculate this scientific equation.

    #1125363

    Toi
    Participant

    the answer is 67.43. i asked haifagirl.

    #1125364

    yeshivaguy45
    Participant

    Maybe I’m crazy but I keep on doing this problem and I keep on coming out to 15. 1+1=2 +1=3 +1=4 +1=5 + 1=6 + 1=7 + 1=8 + 1=9 + 1=10 – 1=9 + 1=10 + 1=11 + 1=12 + 1=13 + 1=14 + (1 x 0)=15

    #1125365

    haifagirl
    Participant

    yeshivaguy45: 14 + 0 = 14. (1 x 0 = 0)

    Believe me. Just call me publicschoolgirl. 😉

    #1125366

    yeshivaguy45
    Participant

    haifagirl I see what you’re talking about. Thanks

    #1125367

    Curiosity
    Participant

    This thread is so sad.

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