Whats 12.949 rounded to one decimal place

[Clarissaintheway]

........?

Chris Not sure why you tagged me? I know Cricket was wrong, see my posts... I was only quietly checking that rounding 12.959 to 1dp you would give the answer as 13.0 not just as 13.

I've probably muddied the waters though as people are misreading my post.

Hee hee, on the Logic above can someone round 12.99999999 for me starting from the far right? 😁

You would not round to 13 if you wanted it to one decimal place! You would round to 13 if they wanted it rounded to the nearest whole number but they don't want that.

Mum yup, graduated late 80s. Though rounding would make that year 2000 I suppose.

There is another mum!!

I thought teentimes was being cricketmum that she had the correct procedure when she absolutely didn't!! Now I see there is another mum username! Sorry!!!

I think this thread is going to get quieter as lots of people try and round pi to one dp by starting at the far right

Exactly purplu, would still be 13.0 even if it was 12.951 in that example.

Remember... count the significant digits first.... dead easy.
Then you are just looking at the rest of the digits to see if they tip you over the halfway point. If they do, you round up, so...

(12.9)0

*telling not being

only the first digit AFTER the significant ones matter, and if it's 5 or more, round it up. Simples

Oops as post above- I misread the 13.0 rounding as someone thinking 12.949 rounded to one decimal place was 13.0! My mistake! (and why I failed GCSE maths many moons ago!)

I know this isn’t the point but why does it matter? In my entire adult life I have never had to round anything down or up to a decimal place

It doesn't surprise me that so many get this wrong. I frequently have to try and explain to people why sometimes if you round then add you get a different figure to if you add then round, therefore they need to set out at what stage rounding should occur.

Id have said 13.0 as my first though because you always round up if there's a 5 involved when rounding and even .0 is one decimal place.

Oh god, is rounding the new BOMDAS?

It's 12.9 (maths lecturer).

Literally laughed out loud, and hard, at rounding pi from the right...

Oh god, is rounding the new BOMDAS?

Although I think you’ll find it’s BIDMAS.

@DeadDoorpost

The number is 12.949

Point me to the 5? There is no 5. It's a 4. So no rounding up. It's 12.9

Hopefully Dead you won't now.

Tiger I guess you don't work in a sciencey area, or have to give things as percentages, or round populations to comprehensible round numbers?

There is no 5 in 12.949 though so the answer is 12.9

Purple BODMAS here, and it's what my DD's were taught too.

I grew up with BODMAS. My school uses BIDMAS which irritates me totally unreasonably.

I know this isn’t the point but why does it matter? In my entire adult life I have never had to round anything down or up to a decimal place

Because if you had a million quid in the bank, and received 9.94% interest in the year, you'd receive 99399.99 pounds, but if the bank said 'sod it, let's just call it 9.9%' you'd lose almost 400 quid.

@TigerDroveAgain

I have to round when I'm working out my wholesale figures. I need to divide up materials costs between the things the packs of materials were used in, then add it all together.. I don't always end up with a nice number to 2 decimal for the pennies. So I need to round to get my wholesale cost and then multiply to get my RRP which then sometimes needs to be rounded as well.

When and why did bodmas become bidmas?

Purple It's confusing when they change stuff isn't it? I still like to use vulgar fractions rather than improper ones, and I'm not sure they even call helium and the like Noble gases anymore.