(4 - 6) times (6 - 4) minus 1 =? A BASIC Math problem MANY will get WRONG!

Math multiple choice question on order of operations, pemdas, positive and negative numbers.
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[@jackson3867]

There are comments saying your explanation is a nightmare, or over-explaining, or complicating the process; however, these are people who already know how to do the math. Your videos are for people who DON’T know the math. I find them helpful and fast forward past information I’ve learned already from previous videos. Thanks for putting these out. I’ve learned a lot.

[@backNblack0523]

Same!

[@earlhaywood4372]

You are so right

[@way2dumb]

Yes. I can see the answer immediately, but learning the processes is the basis to do that.. that takes time and practise. I have always struggled with percentages!

[@KG-kq9tk]

It STILL should not take 22 minutes to explain either way.

[@Odaat2-18]

Meeee too! I appreciate this.

[@stephenwatson8040]

Your explanation of this problem is a nightmare. Just my opinion 6-4 = 2, 4-6= -2, 2*-2= -4, -4-1=-5, easy

[@e.j.s.9137]

Agreed; this explanation seemed scattered and excessive. These videos are usually more succinct. State the proper order and correct result first, then get into the explanation and any necessary discussion of where folks may have gone wrong for those who might need it. Nearly 23 minutes requires more attention than most students would have to give (just like my comment! 😜). But I truly do appreciate these math refreshers. Thank you!

[@angelaclements1244]

That's how I did it. I thought I'd got the right answer the wrong way.

[@djbeacon6895]

He gets more payback the longer the video. These are NOT to teach, they are to make money.

[@inputoutput3539]

Often times they do this so you can rewatch for views… also… people although they understand and have the knowledge.. are poor teachers.. not because they are so genius and full of knowledge and there is an information overload.. no.. they are poor teachers.. simplicity is best…

[@deepierre7575]

It's the easiest way.

[@LivelysReport]

both subtraction problems in parenthesis first, then multiply those two, then subtract the -1.. 4-6=-2 and 6-4=2 -2x2=-4 -4-1=-5.. the answer is -5.. or C!!

[@renaeschuchard9824]

(4-6)(6-4)-1 = (-2)(2)-1 = -4 -1= -5

[@pamelabyars3983]

C)-5

[@mamasally4685]

-5

[@NevadaNotaryServices]

I love the way U explained how the M.D. is a grp and to do ÷ first if it comes first. I never knew that.

[@karin2397]

That is why PEDMAS or BODMAS were the acronyms I was taught.

[@tellyhalkias4653]

Bro you took 22 min to explain what I did in my head in 15 seconds. -5. But those who struggle with math will become more flummoxed by 22 min of this. You can help them by condensing all this into half the time or less given average human attention spans. Cheers!

[@johnscott5226]

I have always loved math, but even I still struggle with it during my current age in life. And I really enjoy the refreshments of reviewing mathematical equations and other things. Thank you so much, Mr. Zimmerman

[@Fishbabies]

THANK YOU SO MUCH FOR YOUR CHANNEL!!! I'm studying for the PARA test after moving to a different state. I've always struggled w/math. I'm glad you take the time to explain E V E R Y T H I N G!! I wish I had a math teacher like you many years ago!!

[@andrewbussey7495]

I had this math going to vocational college. I had a math teacher who help me out a lot with math.

[@carolynfoltz3905]

24-16-36+24-1=-5 FOIL method. -2•+2-1=-5 GRADE school method. Method preferred by those who couldn't get Algebra.

[@iowapanner2223]

You FOILed my desire to be the first one to go there. I think we learned FOIL to make it possible to work with variables, not integers.

[@paulfrost8952]

Why go the long way around a simple problem!?

[@g4l430]

When I was young this was simple but somewhere along the way they changed the rules. Simply stated, math is very precise so expressions need to be precise. Instead of P.E.M.D.A.S it should be (P).(E).(M.D).(A.S) or something similar to clarify order of operation.

[@toddstephen8422]

I teach it like this: P E MD AS

[@g4l430]

@@toddstephen8422 Kudos

[@g4l430]

@@toddstephen8422 And yet, parentheses would make it more mathatical (precise). I applaud that you teach it that way but why not go the extra step to make it more clear?

[@ceeemm1901]

Your channel is brilliant! I learn so much here, cheers.

[@knockywigglesworth1909]

This maybe why school children are having a difficult time learning math. KIST keep it simple teacher... Smart guy certainly a fine instructor but could help my Grand - kids do High School math the way "modern" text books are written. Maybe grade school math instruction isn't up to par but last few years average math test results are heading down.

[@s.p.1536]

I am a literary type but when I follow your problems my mind clears up and I feel a lot of satisfaction. Has anyone measured the brain waves of people listening to a favorite symphony or watching one of your math lessons :)? it would be interesting to see how the synchrony of different parts of the brain gain coherence with different types of experiences.

[@elephantintheroom5678]

I used to be a solely literary and art person, but since learning maths I have come to appreciate the perfection of maths, and how calming it is when you understand it.

[@sw6118]

I was always screwed up on show your work. Some teachers wouldn’t give you credit without it. I love that this was multiple choice.

[@belindahill8310]

Thank You for doing this Math Courses, I'm so grateful because everything I knew about algebra I have mostly forgotten. I do remember the order of operations rule from long ago thanks to you. LoL Thanks for helping me shake off the cobwebs. You're an amazing teacher.😊

[@bertmoore4092]

When I was in high school (60 years ago), we always had parenthesis and exponents. I never had any problem then, but without parenthesis and exponents, your PEMDAS explanations definitely helped me since.

[@deborahgray8869]

I have always loved math. Thank you for your channel & method review!

[@thenetsurferboy]

How cam Math be short for Mathematics Not where I live it isn't

[@TheREALDocRabbit]

I'd like to XPress My Answer is -5. :) Technically, there is no such thing as subtraction, only addition of a negative number. And division is but the multiplication of the reciprocal value you are dividing by. Also, back in my day, if someone handed you an equation like 5*4 / 3+1-2, you would hand them it back and tell them to format it correctly.

[@madelaine3803]

The problem with basic math is that everyone forgets the rules that you learn from elementary and secondary,for which I believe should be added to every test and it's not cheating,some people have photographic memories while others learn by repeating. Order of operation is forgotten for some,just a suggestion to either right it on the chalkboard or on the test paper

[@deadpoet50]

I love the videos. They take me back many years ago 😅 but agree with those that ask for more simplicity. They would be more enjoyable and easier to understand if you go straight to the point: order of operations and then solve it 👍🏼

[@BillGraper]

If you insert an = at the end of the equation, the answer would be -5.

[@mick-berry5331]

Nicely explained ,but 22+ minutes for what took me 10 seconds to solve? 😅

[@smilingpossum7644]

Exactly, this guy will wear ya out

[@johnplong3644]

You lean this in basic math or Pre-Algebra It a lot of schools it is a requirement to pass Algebra 2. To graduate from High School This is a state requirement.

[@gregc.mariano9226]

(-2)(2)-1=-4-1= -5

[@stephenthomas2280]

Simple....(c) -5

[@bartolomeestebanmurillo4459]

Damn. I got it right! -5!

[@thenetsurferboy]

But teacher didn't

[@gregginter5867]

😂😅🎉❤

[@sharonmcclean285]

Brackets mean multiply. (4-6) represents scale e.g. - 7 -6 -5 -4 -3 -2 -1, 0 + 1, +2 + 3, +4, +5, +6...... So + 4 -6, count backwards = -2 -2 x (6-4) = -4 -4 -1 = -5

[@ArdeconHobby]

a) -5

[@nancyholmquist2690]

B. After watching how to solve this, I got it wrong. Its just not logical ... I thought math is supposed to be logical!

[@brucebraden8252]

You made a lot of sense until you changed the positive one into a negative one to get your negative 5 instead of what should have been a -3 that's why math sucks and why a lot of us got bad grades in math

[@josephcope2737]

If PEMDAS was any good as a rule it wouldn't take so long for you to explain this simple problem. The order of operations for thIs problem is actually PSPSMS.That's why it's so confusing to some people. In this case the parentheses are quite sufficient without invoking PEMDAS

[@thamaraik1773]

Do brackets first, followed by multiplication and division and finally addition and subtraction- so (4-6) (6-4) - 1 = (-2) (2) -1= -4-1=-5

[@richardhole8429]

PEDMAS order of operations says do the parenthesis first. (4 - 6 ) = -2 (6 - 4 ) = 2 Multiication and Division come next: -2 × 2 = -4 Next comes addition and subtraction: -4 - 1= -5

[@Pugh.Pugh.BarneyMcGrew]

That wasn't the way I was taught. (4-6)(6-4)= 4(6-4) - 6(6-4) = 8 - 12 and the extra -1 = -5. That thing where you changed all the signs yuck.

[@sean_heisler]

Got it right, baby!

[@pamwaldron3504]

I got 0. LOL I'd forgotten (-) (+)= - but it's been about 50 years of not using negative math, so...

[@loreleidixon3651]

BEDMAS Brackets, Exponents, Division/or Multiplication, Addition/Subtraction

[@Mojo2113]

(-2x 2) -1= -5

[@michaelsargeaunt]

-5, that is my answer, probably wrong. -2 x +2 -1...- x + is a minus so -4 then -1 =-5.

[@wg8517]

My math skills from grade school and high school helped me get this right. I am not even someone who likes math generally 😊

[@heritageofhastur]

c) -5

[@russelllomando8460]

got it -5 thanks for the fun

[@robcarter55]

Thought I must have got this wrong because it was obvious. Thought must be a trick and expecting to be told so . But NO so happy I got it right but sad I didn't learn anything 😇

[@pandorademarco]

It just took him 22 minutes to explain something you can do in your head in 10 seconds.

[@user-de1wv4gx2l]

-5 .no problem

[@scottmohr4428]

-5. I'm glad you got this right! PEMDAS is absolute!

[@flashesoflightandshadow9825]

-5

[@ArthurvanH0udt]

22m for something that can be explained in about 1or2m. CRAZY!

[@RobertNugent]

"Assume you're going to pay back your friend..." You don't know me. You don't know me at all.

[@MD-gr6so]

Next please, 1+1 in 10 hours!

[@gillianrolland4305]

Is explanation of negative numbers is far too long and confused. I learned about them using a number line negatives coming from the left approaching zero then becoming positive and stretching away to infinity and you move backwards abd forward

[@kianafarsi4092]

I learned this in 4th grade in Iran .

[@shobhacbasavarya7658]

_5 is the correct answer. First subtract both thenos. in the bracket we will get(_2). (_+2) _1= _4_1=add weget=_5

[@laurindapace2164]

Thank you,Mr.John.

[@billcape9405]

Once again. the implied multiplication is going to screw things up.

[@prabakaranethirajulu3053]

(4-6)(6-4)-1=? (-2)(2)-1=? -4-1=-5 It is simple equation it doesn't require much explanation as you told

[@williampapadopoulos8145]

The answer is C. Solved it in 5 seconds.

[@watchmanonthewall14]

I solved it in negative 5 seconds.

[@carlwesthafer7971]

c) -5.0

[@rachelsalazar6410]

Thank you for facilitating this Mr Mathman

[@Gigi-eg4zg]

You're the kind of teacher that makes kids hate math.

[@SR-007-BOND]

4 the 1 time this kid here ( myself ) is enjoying math 🤗 Please Excuse My Dear Aunt Sally 🤭Thank you John❤

[@mrapp10143]

First, rude. Obviously a keyboard bully. Second, he gives kudos and dies not talk down but simplifies his explanation. This way even a person who dies not get it as fast can understand.

[@user-uj6im3hi4i]

I’m in big trouble. My answer wasn’t even one of the multiple choice 😮

[@TommyGirl-lk8ky]

I got it. Surprised. Always struggled with math when I was young but I understood you.

[@flyingspirit3549]

Got it right! (because I've been watching your videos -- before, I'd forgotten too much basic math!)

[@IsrarKhan-sg3yd]

I m mathimation from Pakistan, easy solution to equation is as follow: (4-6)(6-4)-1= -2(6-4)-1= -2(2)-1= -4-1=-5 is the correct Answer. No rocket 🚀 Science

[@julieneria9834]

Thank you Mr. John!

[@pasilu007]

For all of you that got the answer in 22-seconds and whining about the 22 minute video, why did you waste your 21 minutes and 38 seconds? Just asking an equally simple question.

[@rodfulford4306]

C=-5

[@feralbluee]

this is a really good lesson. I forgot some of how negative numbers work. So thanks :)

[@tsntana]

I'd love to see a video of you explaining 2 + 2. :)

[@Og-Judy]

TWENTY MINUTES ! Just to get to the point of solving the actual math problem. 🥱😴

[@Chris11R]

The most amazing thing is that he dragged this simple question out to make a 22 minute video 🤦🏽‍♂️

[@Godolfstan]

it`s a! ...and now, I will see if I was right (WAS...., hopefully...) PS. sh... I was mistaken by the last minus 1, did the wrong "direction"!

[@velveteenv76]

Went with 3, wasn't sure if x by a negative made it a positive .

[@joerosenman3480]

I’m going to make a suggestion: after going through the process of solving a problem end these tutorials by presenting a practice problem with four choices and a key code. Set up a web page that only has key codes and the corresponding correct answer (from the aforementioned multiple choices). One page should easily handle 16 or 60 lines of keycodes, times four if you put them into columns too. Maintaining one page shouldn’t be that onerous and as a teacher I needn’t tell you the value of practicing the same skills just taught. Anyway, as I said, a suggestion.

[@giannaleoci2328]

-2•2-1=-4-1=-5

[@mr.mxyzptlks8391]

Totally besides the intent of the vid, you went into dollars examples. I think a lesson on compound interest, for assets vs. debt would be nice. Would still be plain high school math.

[@eugenebeasley1094]

(C)-5

[@LucyWalusiak]

c(-5)

[@user-rt9qt9vs2b]

A -3 had it right then second guessed

[@davidalzamora5993]

I got the right answer using F.O.I.L. method

[@Malzarius85]

I got it right using the anti foil method 🧐

[@watchmanonthewall14]

@@Malzarius85 I got it right by using the Saran wrap method.

[@Malzarius85]

@@watchmanonthewall14 that method does seem to prove faster then the anti foil method in today's science. I applaud you sir.

[@rasadnur6308]

-5 P, (4-6) × (6-4) - 1 Multiply, (-2 × 2) Subtract - 1 change to add and negative sign is still remained , -4 & - 1 are added = c-5 It can be also -3 because it is minused positive 1 outside the parentheses.😂

[@DonnaCross4614]

C. -5

[@jasmitsangha663]

(4 minus 6) (6 minus 4) minus 1 equals negative 5

[@andthepoetliftshispen5752]

Where's the "None of the above"? 😂

[@stanleyreynolds7800]

I'm glad to see you got one right.

[@heathspears8881]

-5 my guy

[@cheriamour2429]

In the 70s , we never heard of PEMDAS and just did our algebraic equations left to right anyway. How long has this been around John?

[@brendafinlay6800]

I graduated in 1977 and I don’t ever remember hearing of PEMDAS! I was beginning to wonder if I had slept through all those classes and I LOVED math. Thank you for your post.

[@gavindeane3670]

Multiplication having higher precedence than addition has been the way mathematical notation works for a few centuries now. Acronyms like PEMDAS seem to have been around for 100 years ish, maybe a bit longer. Actually teaching these rules in the context of simple arithmetic was more patchy in the past than it is now though. Some people who learned in the 70s or earlier were taught this, but certainly not everybody. It doesn't really matter for this question though, because reading it left to right gets the correct answer anyway.

[@gopherspace8571]

Wow I learned so much from this one Thank You

[@Ayelmar]

At the title card, PEMDAS returns! My answer is c) -5.

[@kralzuala1569]

My answer is -5

[@williamjames305]

(-2) x (+2) = (-4) - (+1) = (-3) Answer is A (-3).

[@kenmcwise1776]

First everything is a subtraction and you always do inside the parentheses first. Furthermore, because there’s two parentheses you go left to right 4-6 is -2 times 6-4 is 2. -2×2 is -4 and take away one more is a -5. Done easy peasy

[@bingo1232]

Love these little challenges!!

[@manuelquitevis6794]

(-2).(2) -1 = -4 -1 = -5(c )

[@davidgriffin79]

There are two ways this can be done: 1) (4-6)(6-4)-1 = (-2)(2)-1 = -4-1=-5 or If you want to do it as if it were a quadratic equation: 2) (4-6)(6-4) - 1 = 24-36-16+24-1= -5. Either way, I'm utterly amazed that this very simple arithmetic (involving parenthesis) attracts so many views; is numeracy that bad world wide? And it warrants a 22 minute video 😳

[@dancerinthestorm7718]

I got it right. Old school.

[@stevenleach9522]

+2-+6=-2 & +6-+4=2; -2×+2=-4; -4-1=5. ans. C) -5

[@heidicameron2015]

C I figured it out in my head.

[@user-pt5pp3le2f]

binomials and distributive property.....did you mention these?