What is 5 + 3 * 0?

[Lockjaw 11]

This thread is truly remarkable!

[denlin 12]

Questions from here, none of which contain brackets.

 

1. What is the value of 3 + 6 ÷ 3 × 2 ?

3. What is the value of 5 × 3 - 12 ÷ 4 + 8

4. What is the value of 5 × 4 - 2 × 3 + 16 ÷ 4

 

If you would be so kind Willman, please answer them.

 

jb

 

 

1. 6

3. 8.75

4. 17.5 what happened to question 2?

[denlin 12]

This thread is truly remarkable!

 

I have to agree with that:hihi::hihi:

[barleycorn 10]

The BBC use BIDMAS the I refers to indices -

 

"In BIDMAS, multiplication comes before addition, "

IN BIDMAS not all the time.

Anyone adding brackets to a sum makes it part of the BIDMAS/BODMAS rules, otherwise its left to right.

 

Strange, because here it says to follow BODMAS

 

http://www.bbc.co.uk/schools/ks3bitesize/maths/number/order_operation/revise1.shtml

and here

http://www.bbc.co.uk/schools/gcsebitesize/maths/number/orderoperationrev1.shtml

 

jb

Edited March 13, 2012 by barleycorn

[Lockjaw 11]

1. 6

 

Nope, 7.

 

 

 

3. 8.75

 

Nope, 20.

 

 

 

4. 17.5

 

Nope, 18.

 

 

ETA .... Ha ha ... corrected - I got the first one wrong! (cheers Max)

Edited March 13, 2012 by Lockjaw

[willman 10]

So, if I think about this as 6 customers buying a coffee and bun, we have:

 

6 x 1.05 + 3.50, which is £9.80!!!

 

Three versions of the same sum - three different answers because BODMAS does not apply?

 

Honestly - one can only laugh!

 

Thats not the same sum at all, you've changed it completely.

[willman 10]

Strange, because here it says to follow BODMAS

 

http://www.bbc.co.uk/schools/ks3bitesize/maths/number/order_operation/revise1.shtml

 

jb

 

Well i found a listing that said BIDMAS , big deal.

[max 13]

1. 6

3. 8.75

4. 17.5 what happened to question 2?

 

Question 1 from Willman's own link gives the answer as 7:

 

Order of Operations are:

* Parentheses (Brackets) first

* Exponents (Orders, Powers, Square Roots, etc.) next

* Multiplication and Division (left-to-right) next

* Addition and Subtraction (left-to-right) last

 

Therefore, we do the division first, then the multiplication and finally the addition:

 

3 + 6 ÷ 3 × 2

= 3 + 2 × 2

= 3 + 4

= 7

 

Notice there are no brackets but still BODMAS applies.

[denlin 12]

Nurse, he's out of bed again.:hihi:

 

Will you please stop calling me HE - my name is Lin, you clearly don't use forum much:roll:

[Lockjaw 11]

Would it help here if I added that I was always tought that " x " and " ÷ " imply brackets?

[willman 10]

Question 1 from Willman's own link gives the answer as 7:

 

 

 

Notice there are no brackets but still BODMAS applies.

 

Because its on a page discussing BODMAS i.e an example of how to follow the rules of operations.

[max 13]

Because its on a page discussing BODMAS i.e an example of how to follow the rules of operations.

 

What other rules of operation are there?