40+40x0+1 ?

[minimuffy]

40 + 40 x 0 + 1 =

A- 1
B- 41
c- 0

I say its B-41 as you need to multiply then add. (from what i remember of standard grade maths the acroymym BOMDAS- brackets off, multiply, divide, add, subtract)

DH says its 1.

please tell he's wrong!

Yes, I get that you multiply first- but which bit do you multiply, and why?

if there are no brackets then you go on to the next bit. There are no indices either (and no division) so the next operation you do is multiplication.

We drew a pencil line under the ones we used lots.

Can you apply that to the sum for me and talk me through it, please, Kitten, or anyone?

you do the two numbers that are next to the multiply sign, them and them alone!

It's 41 and if you say 1 you're DOING IT WRONG.

You multiply the two numbers immediately either side of the multiply sign.

DH - PhD in maths and maths teacher - says 41. He also said 'bodmas'.

order of operations

BODMAS (or BOMDAS) means

Brackets
Of (or over, eg fractions 1/2 of 12 etc)
Divide
Multiply
Add
Subtract

and is the order you should do calculations in.

So, if there are brackets you do anything inside the brackets first. If there are no brackets, move on to the next items on the list.

In this case, move on to multiplication (as there are no fractions to carry out). So do calculation 40 x 0 = 0.

Then add everything together to get answer.

Hope that helps

(PS - I am also a maths teacher, it is a common mistake to do calculations in the wrong order) Here is another description.

some pupils are taught 'o' for pOwers instead of 'i' for indices.

We were taught BEDMAS (Brackets, Exponents, Divide/Multiply, Add/Subtract), but they don't seem to use the word exponents anymore.

It doesn't help that I keep having to scroll up to hold the sum in my mind. I have real trouble reading numbers- I can't look at train timetables etc without them just vanishing when I look at the station name . it makes stuff like this, with it at the top of the page really difficult. I just can't hold onto numbers in my brain, if that makes sense?

40 + 40 x 0 + 1 =

Do the multiplication first - 40 x 0 = 0

Then the additions - so you have 40 + 0 + 1 = 41.

Multiplication always comes before addition unless there are brackets directing you otherwise. If it were (40 + 40) x 0 + 1, for example, it would be 81.

I agree atyourcervix. It would be far more sensible to have wee men inside computers with semaphore flags.

Agree with those posters wondering why we are debating
It. Fair enough if you don't know or don't understand but don't quibble. There aren't any brackets so you multi

Agree it's 41.

Have had enough practice, given that we are and my sister I am trying to work out the answers in advance.

To break the sum down there are no brackets or indices so you do the multiplication section first i.e. 40 x 0 =0
Once this is done you look do the addition bits i.e.
40 + 0 + 1 = 41

Definitely 41.

You always have to work out anything in brackets first (in this case, there are none), then calculate the result of any powers/exponents/orders (again, none here), then division (none), multiplication (40*0=0), then addition (40+0+1=41) and lastly subtraction (of which there's also none in this expression.)

Therefore the answer is 41.

1

follow BODMAS rules of operation

Right, I think I get it now, thank you

sure :)

40 + 40 x 0 + 1

no brackets
no squaring or square roots or what not.
So next it is division or multiplication. You only multiply the numbers on either side of the x so 40x0=0
so now you have 40 + 0 + 1 = 41

No, sorry, (40 + 40) x 0 + 1 would be 1, not 81! Doh.

Argh - I, of course, mean 41!

following rules of operation!

Oops..

Multiply first. Then treat whatever the answer (40 x 0 = 0) is as part of the sum. 40 + 1.

Wee men with semaphore flags :o priceless.