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marrbett

Danigrace wrote: »

http://www.bbc.co.uk/bitesize/ks3/maths/number/order_operation/revision/2/

Now I'm confused, does that mean that you do the subtraction first as its before the addition (after the multiplication) ??

In which case I agree with Tiny

andi123

25% off clothing at Sainsbobs next week and 1/2 price selected clothing week after HTH

tbw

Serendipitious wrote: »

I think it's 2

If you do it sequentially I agree with 2 - but I seem to remember there is some odd maths rule that tells you which order + - x etc are done in. I can't quite remember it but it could give a different result.

nerfdad

xxlouisexx56 wrote: »

Off to buy 2 meal deals!

Will update about 4:30 after parents evening x

No room in my freezer:o:o

miss_corerupted

springdreams wrote: »

I think that the kids would not find exams so stressful if they do do them regularly.

This exactly what OH said last night when I was getting myself worked up about it.


I'm having a calm exterior with DS for this, I'm not going to make it a big deal as I'll get him stressed.


I hated tests and always found them very stressful

Danigrace

marrbett wrote: »

Now I'm confused, does that mean that you do the subtraction first as its before the addition (after the multiplication) ??

In which case I agree with Tiny

I think I agree with marrbett:-

BIDMAS = brackets, indices, division, multiplication, addition, subtraction in that order so

3-3x6+2=
3x6 = 18
+2 = 20
3-20= -17

silvercar

Danigrace wrote: »

I think I agree with marrbett:-

BIDMAS = brackets, indices, division, multiplication, addition, subtraction in that order so

3-3x6+2=
3x6 = 18
+2 = 20
3-20= -17

I agree.

I was taught BODMAS-brackets, of, division, multiplication, addition, subtraction.

Bajjo

Enormo wrote: »

Is the answer -13 ?

tbw wrote: »

If you do it sequentially I agree with 2 - but I seem to remember there is some odd maths rule that tells you which order + - x etc are done in. I can't quite remember it but it could give a different result.

Yup, you're right about the rule. Multiplication comes before addition/subraction. The answer is -13.

marrbett

Danigrace wrote: »

I think I agree with marrbett:-

BIDMAS = brackets, indices, division, multiplication, addition, subtraction in that order so

3-3x6+2=
3x6 = 18
+2 = 20
3-20= -17

Ha ha, except, that bbc website suggests that if its just subtraction and addition left, that you do them in the order the sum is in....which goes back to Tiny's calculator result. How confusing to make a rule that isn't a rule:rotfl:

Call_of_Trouty

xxlouisexx56 wrote: »

Off to buy 2 meal deals!

Will update about 4:30 after parents evening x

Meal deal and Turkey mince working