COMPUTATION and Number Theory PART 1

a fundamental part of doing mathematics resides in the ability to perform computation correctly.

[michael-alexandermcpherson]

Thanks ProMath.. You made it very easy to understand

[moodyxgurls]

still waiting for part 2 ....please upload part 2

[mensamoo]

3:14 even numbers, which when divided by e was this planned to happen at pi minutes? .

[pastifier]

Multiplication always coming first doesn't make sense to me because 32 ÷ 2 × 4 - 5 can also be rewritten as 32 × 1/2 × 4 - 5. In which case, 16 × 4 - 5 gives 64 - 5; whereas 32 ÷ 2 × 4 - 5, with your explanation gives 32 ÷ 8 - 5, which seems to be completely wrong to me. Can I have an explanation as to why it isn't just multiplication/division from left to right? Cuz, again, division is just multiplying by the inverse

[JanGeeY]

In PEMDAS, P stands for parenthesis and E stands for Exponents.

[dannyboy]

Sir may I just point out the expression that you did...9-12÷3×2=1, you got 7 which is an error. If you punch this expression into a calculator you will not get 7. The reason you got 7 is because you did...3×2 first. Both multiplication and Division are a order of priority. So if Division comes before Multiplication In a given expression (like in this case), moving from left to right. Division SHOULD BE DONE before Multiplication. So that's why when you punch this expression into a Calculator or Ai program you will Not get 7 but 1. Remember the expression is being solve from left to right. So if Division comes before Multiplication it is to be done first. Both are a order of priority. It is just a matter of which one comes before the other from left to right.

[johnrogers]

Intermediary section, example 3 is incorrect.

[epicprogamer]

This was great but pemdas is parentheses, exponents im pretty sure

[jaderogers]

great video! can u please link me to part 2?

[pencilartnz]

I am surprised at the way you handle the minus sign. The minus sign is used to indicate two different things in mathematics. It can be used to represent a negative number which tells us how far to the left of zero the number is. Secondly, it can be used to indicate the binary operation of subtraction which is defined as the addition of opposed of the number being subtracted. The minus sign has no mathematical meaning. To solve expressions, first change all operations of subtraction to addition and then apply the rules for adding positive and negative numbers which can be easily explained using the number line. Cheers.

[alexreid]

Thanks much. U made it easy to understand 👍

[Nika_Losaberidze]

Is it true that negative numbers can be even? Odd? I thought only positive ones could be even or odd

[SuperEDU-hz]

There is also bodmas too the caribbean mostly use this

[-xb]

Multiplication and division have the same precedence. 9:53 should be 59 not -1. Checked on symbolab and wolfram alpha. Also 12:32 is wrong as well.

[lilibethlagario]

Nice lesson do have complete module of this?

[jodyedwards]

This is great video broken down very nicely, however u move bit too fast when going through the examples for future presentations if u could slow down a bit. Thank u

[reteshlatchman]

10:21 unless u gonna tell me a Calulator is wrong and that the correct way to do it isn't bodmas, then that's wrong

[richardchambers]

Love the presentation, what is the pattern of upload? Random?

[WatrWavs]

made it very easy, thank you, big up yuhself

[reteshlatchman]

Unless you gonna tell me a calculator is wrong,