I have learned this when I was 5th class student. Now I am becoming a coder.

I haven’t done this math in 7-8+ years now I need it for my ASVAB. I appreciate this video

You don't really need to do add/subtract from left to right, since addition is associative.

@eddspaghetti4772

Жыл бұрын

Yeah but subtraction is not

@CurryMuncher2

7 ай бұрын

@@eddspaghetti4772subtraction is just addition by negative number

@klm2558

6 ай бұрын

​@@eddspaghetti4772 subtraction IS addition

Nice to see your brief lectures in shorts👍

That was v interesting.....Thank you Sir.

Just found this channel and it came at the right time!

Just a quick tip, implied multiplication comes before regular multiplication or division (i.e. 3(1+3), 3b, etc.)

@klm2558

6 ай бұрын

Multiplication is multiplication, there is no difference. 8*8 is still 8(8), which is still 8^2. The difference in notation is simply a difference in the level of mathematics.

@Mesa_Mike

Ай бұрын

That's a different argument. Not relevant to the given example.

Thinks for helping❤🎉🎉

Amazing lecture 🧠👊✊

@MathAndScience

Жыл бұрын

Thank you!

My memory has returned.

Dealing with brackets MUST BE consistent with the distributive rule

@Mesa_Mike

Ай бұрын

Irrelevant in this example.

I always get confused with PEMDAS because growing up i remember it as BMDAS

@Mesa_Mike

Ай бұрын

Same thing, just different words

Nice so much I remamber you

Thank you

Many years ago I happened to hear a radio show about how the Order of Operations came to be. Essentially, according to the guest historian, two mathematicians back in the 1209s, 1300s, 1400s, something like that, were debating how to solve a complex equation, and one of them came up with what would come to be known as "PEMDAS" to win the argument. I understand the need for Order of Operations in a complex equation, but for simple math like, say "2 + 2 x 4", what common sense, logical reason is there to do the multiplication before the addition? For simple equations like this, there is no reason to do it any other way than simply left-to-right. Anything else is just not real world applicable. For example, if you want to figure your paycheck, and you work odd hours - Say you work ten hours on Monday, eight hours on Tuesday, five hours on Wednesday, nine hours on Thursday, and seven hours on Friday, and you get paid $14 per hour, the simplest way to figure your pay is to write the equation out in a straight line: 10 + 8 + 5 + 9 + 7 x 14. Period. Simple logic. PEMDAS, however, would definitely get you an incorrect answer. What say you?

@james7384

Жыл бұрын

Yes but that equation for pay should be written as (10+8+5+9+7) x 14. Then add all the hours in the brackets and multiply by the hourly pay of 14.

@klm2558

6 ай бұрын

Because you wrote it wrong. 14 distributes to all the values presented before it

@klm2558

6 ай бұрын

You have to remember, the order of operations is not simply one baseless rule. However this rule definitely makes it a lot easier to understand and interpret expressions, rather than taking the time to compose one long line of linear solving. You have to remember, addition is just the count value of numbers away from the number line. For example: 1 + 1 = 2, thus meaning 2 units away from 0. Multiplication is just repeated addition, 2 * 3 = 2 + 2 + 2. However, if we do this left to write like you say: 2 + 2 * 3 = 4 * 3 = 4 + 4 + 4 = 8 + 4 = 12 As opposed to: 2 + 2(3) = 2 + 2 + 2 + 2 = 4(2) = 8 This way of interpretation we have to realize the actual underlying definition of mathematics and how numbers relate to themselves. No matter the order, the modification, the complexity in which you simplify that expression, following the rules of math, you will end up with ALWAYS the same answer. Furthermore, isn't this quite an inefficient way of writing and interpreting expressions? This is not reliable at all not even in simple situations.

Yessssssssss Sir 🥊🥊💯🤧

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@user-mk1uv1oo3z

4 ай бұрын

No

I literally forgot how to do pemdas then searched how to then it just clicks now😭

BODMAS/ Since i was very young, i've used "BODMAS"

ok sir🤓

When you graduate from high school in the Chicago Public School System, you will not know how to do this. Very sad......

Add OR Subtract? I was always told add then subtract 😅my math teachers failed me

❤❤

Do you do online tutoring?

What is the sterment

Thx sooo much I am in 4th grade and thx to you I can do pemdas even though I'm learning dmas and next can u do bodmas please

slow down in your explanation.

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I used to be so confised about exponits since I didnt finish 6th grade..

Thanks. I read technical books and I suck at the formulas. lol.

that is really sad some people still dont know steps in math

@koshella06

8 ай бұрын

Math is kind of hard cause u got to memorize a lot of things. It is not sad because people want to learn more about Math so that they can ace school and grades! 😊

Pemdas is french n bedmas is english..

I think the answer is 7?😅😅😅

@Rambo_1348

5 ай бұрын

You're so wrong

Team 37

@sheeb3050

3 ай бұрын

What? How

USE GEMDAS PEMDAS ISNT A THING

@EnzationEnz

7 ай бұрын

Pemdas is a thing

"Always, parentheses" is just false. No, the parentheses didn't need to be done first. That's the problem with teaching there is such a thing as "order of operations." What matters is operator precedence. You could square the 9 first, then add the result to 8 to get 89 before you have work out what's in the parentheses. Please quit teaching "order of operations." It's just obedience training, not math.

Why 9 for 2 time? 9.2=18

@BlueProgamer212

Жыл бұрын

It's an exponent. The 2 here is clearly a superscript, it's not 9(2). Thus, it is 9 * 9, not 9 * 2.

@srisairampraveenganisetti

Жыл бұрын

It's 9 power 2. Not 9×2

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