Casio Scientific Calculator fx-83ES - Was £7.99, now just £2 instore at Sainsbury's
438°Expired

Casio Scientific Calculator fx-83ES - Was £7.99, now just £2 instore at Sainsbury's

33
Found 17th Jan 2009Made hot 18th Jan 2009
Spotted this evening - a bargain i thought! The standard one for School/College etc.

Still showing at £7.99 online, but in my local store it was marked down to just £2 - and there were quite a few left.

33 Comments

Yeah this is a good deal. Heat added!

********! I just purchased one of these last night for £7.99 from my local sainsburys :x

mighty hot indeed.

That Price Is Awesome!!

Great calculator, makes inputting large fractions easy allowing you to solve problems in one go.

However, if you're taking A-level maths, I reckon it might be worth investing in a graphical calculator. I borrowed one from school and I think it gained me several marks per exam by allowing me to check certain answers.

@ Kerch:

You should be careful with certain graphical calculators since it is really putting you at an advantage

Banned

Kerch;4105354

Great calculator, makes inputting large fractions easy allowing you to … Great calculator, makes inputting large fractions easy allowing you to solve problems in one go.However, if you're taking A-level maths, I reckon it might be worth investing in a graphical calculator. I borrowed one from school and I think it gained me several marks per exam by allowing me to check certain answers.




You are not supposed to be allowed graphical calculators in exams and never have been.

If you get caught with a graphical calculator they will pull you out rip up your paper and fail you. It is classed as and is cheating, which you just stated, you could check your answers, other students could not, it pretty much is giving you the answer.

Also when I was in High school I got these for £1.99 all the time, so how is it a deal? At a total loss.

Reser;4105457

Also when I was in High school I got these for £1.99 all the time, so how … Also when I was in High school I got these for £1.99 all the time, so how is it a deal? At a total loss.


Presumably its been voted hot as this is the cheapest price for this model? To compare this with the price your bought it at school isn't valid - what to say the £1.99 price you paid wasn't subsidised in some way?

Reser;4105457

You are not supposed to be allowed graphical calculators in exams and … You are not supposed to be allowed graphical calculators in exams and never have been.If you get caught with a graphical calcualtor they will pull you out rip up your paper and fail you. It is classed as and is cheating, which you just stated, you could check your answers, other students could not, it pretty much is giving you the answer.Also when I was in High school I got these for £1.99 all the time, so how is it a deal? At a total loss.

It clearly states on the front of the exam "You are permitted to use a graphical calculator in this paper."

As if the school would specifically lend us banned calculators.

It's marked in such a way that your method has to be detailed and correct to get the marks.

Banned

Kerch;4105535

It clearly states on the front of the exam "You are permitted to use a … It clearly states on the front of the exam "You are permitted to use a graphical calculator in this paper."As if the school would specifically lend us banned calculators.It's marked in such a way that your method has to be detailed and correct to get the marks.



I done A Level maths, on the front of the paper it said 'you are NOT permitted to use a graphical calculator' and they reminded us several times. Reason being it would give you an advantage over anyone who does not have one, the exams are written in a way that graphical calculators should not be needed.

Using any calculator that has a facility for symbolic algebra, differentiation and/or integration is classed as cheating.

pita^norf;4105504

Presumably its been voted hot as this is the cheapest price for this … Presumably its been voted hot as this is the cheapest price for this model? To compare this with the price your bought it at school isn't valid - what to say the £1.99 price you paid wasn't subsidised in some way?



Err did I say I bought from my highschool? I bought from Woolworths, T and G Allens and my local supermarkets, always for a few quid. They are always this price in store in most places.

Reser;4105547

I done A Level maths, on the front of the paper it said 'you are NOT … I done A Level maths, on the front of the paper it said 'you are NOT permitted to use a graphical calculator' and they reminded us several times. Reason being it would give you an advantage over anyone who does not have one, the exams are written in a way that graphical calculators should not be needed.

Then we must have taken it under different exam boards; I did OCR.

Take a look for yourself:

ocr.org.uk/Dat…pdf

Also bear in mind these Casio calculators allow you to multiply matrices and complex numbers, which would give you an advantage over someone with a more basic calculator.

good price but none in manchester

[IMG]casio.co.uk/con…spx?Size=500&FileId=UHRAxNXyUMY=[/IMG]

Unbelievable at that price!

HOT

Err did I say I bought from my highschool? I bought from Woolworths, T and G Allens and my local supermarkets, always for a few quid. They are always this price in store in most places.[/QUOTE]

Not very often this price, certainly not when we've come to buy them - if this is nationwide then probably the best around currently. Not going to be Woolies!

mighty good calculators. graphical calculators are good but too bulky and you'd need to actually read the manual to get full use of it. Anyone who says get a graphical calculator instead is pretty lazy.

this is the best "simple" calculator you can get, i had one of the older versions of this from....ages ago up until recently when i misplaced it. I was actually going to buy this model at £7.99 from my university(!)

i also believe that this certain model solves quadractics?


how big does a sainsbury have to be to stock these? i can't remember ever seeing anything but consumables in my locals

Original Poster

morales;4106059

mighty good calculators. graphical calculators are good but too bulky and … mighty good calculators. graphical calculators are good but too bulky and you'd need to actually read the manual to get full use of it. Anyone who says get a graphical calculator instead is pretty lazy. this is the best "simple" calculator you can get, i had one of the older versions of this from....ages ago up until recently when i misplaced it. I was actually going to buy this model at £7.99 from my university(!)i also believe that this certain model solves quadractics?how big does a sainsbury have to be to stock these? i can't remember ever seeing anything but consumables in my locals



Well, my store is not that big, smaller than a lot of stores, but bigger than a Central/Local store. I think most Sainsbury's stores sell Stationary, and that's where these ones where.

I'm just uploading a photo of the packet and receipt:
http://i105.photobucket.com/albums/m232/englandsbest/SDC10227.jpg
http://i105.photobucket.com/albums/m232/englandsbest/Sainsburyscalculator.jpg

good price, nice find

Kerch;4105576

Then we must have taken it under different exam boards; I did OCR.Take a … Then we must have taken it under different exam boards; I did OCR.Take a look for yourself:http://www.ocr.org.uk/Data/publications/past_papers_2007_January/AS_GCE_Mathematics_4723_01_January_2007_Question_Paper.pdfAlso bear in mind these Casio calculators allow you to multiply matrices and complex numbers, which would give you an advantage over someone with a more basic calculator.



ha ha I knew I should not have clicked onto that Maths paper - it would take more than a good calculator for me to pass that! Good price tho I paid a lot more than this for daughter's

Unexpired

Not reduced in my local Sainsbury's :x

Reser;4105457

You are not supposed to be allowed graphical calculators in exams and … You are not supposed to be allowed graphical calculators in exams and never have been.If you get caught with a graphical calculator they will pull you out rip up your paper and fail you. It is classed as and is cheating, which you just stated, you could check your answers, other students could not, it pretty much is giving you the answer.Also when I was in High school I got these for £1.99 all the time, so how is it a deal? At a total loss.


Only applies to non calculator papers and Core or pure 1 maths.

morales;4106059

this is the best "simple" calculator you can get, i had one of the older … this is the best "simple" calculator you can get, i had one of the older versions of this from....ages ago up until recently when i misplaced it. I was actually going to buy this model at £7.99 from my university(!)



Personally unless you are going for an A* at GCSE I would steer clear of this calculator and get a Sharp.

Problems with this calculator for "less able" students include:

squaring negatives - if your type in -2^2 it gives you -4 !!
Use of surds - type in 10sin60 and it will reply 5root3 not 8.66... also 5 divided by 2 is 5/2 not 2.5

You can solve the surd problems by going to setup->LineIO but the negatives squares problem remains. The Sharp will automatically put the -2 in brackets before squaring giving you the right answer. This leads to a lot of mistakes on quadratic graph plotting since most people don't even realise this.

dajg;4107456

Personally unless you are going for an A* at GCSE I would steer clear of … Personally unless you are going for an A* at GCSE I would steer clear of this calculator and get a Sharp.Problems with this calculator for "less able" students include:squaring negatives - if your type in -2^2 it gives you -4 !!Use of surds - type in 10sin60 and it will reply 5root3 not 8.66... also 5 divided by 2 is 5/2 not 2.5You can solve the surd problems by going to setup->LineIO but the negatives squares problem remains. The Sharp will automatically put the -2 in brackets before squaring giving you the right answer. This leads to a lot of mistakes on quadratic graph plotting since most people don't even realise this.

I don't think there's one right way of doing -2^2. You could mean (-2)^2 or you could mean -(2^2), so unless you use the brackets no calculator can always know what you mean.

Also there's a button which looks like this (S D) which turns answers from surds/fractions to decimals. It's a really useful feature that it gives them to you in exact form.

I've used this calculator in my A-Level exams as well as my first year at University and had no problems with it. Its useful leaving answers in surd form as its more accurate than a decimal. Also if you need the answer in decimal form there is a SD button that changes from one form to the other.

DAMN IT!!!!!

I just got back from wilkinsons and bought myself one of these as a back up to my same model that i use in civil engineering.....for £5!!!

i thought that was such a steal.......i was wrong.

@ £2...this is amazing. Will be getting a few more to last my career!!!

Banned

Scanned at £7.99 in Sunderland Sainsburys

Still full price in Rustington

Please expire this deal

Sainsbury's must have made a mistake with the price and have now corrected it

Kerch;4105576

Then we must have taken it under different exam boards; I did OCR.Take a … Then we must have taken it under different exam boards; I did OCR.Take a look for yourself:http://www.ocr.org.uk/Data/publications/past_papers_2007_January/AS_GCE_Mathematics_4723_01_January_2007_Question_Paper.pdfAlso bear in mind these Casio calculators allow you to multiply matrices and complex numbers, which would give you an advantage over someone with a more basic calculator.



You might just be onto something! I guess it depends on the exam board and the paper you're taking. There's a lot of variety out there.

This is definitely a good price for this calculator. The cheapest I've been able to find them is around a fiver in Wilkinsons.

Reser;4105457

You are not supposed to be allowed graphical calculators in exams and … You are not supposed to be allowed graphical calculators in exams and never have been.If you get caught with a graphical calculator they will pull you out rip up your paper and fail you. It is classed as and is cheating, which you just stated, you could check your answers, other students could not, it pretty much is giving you the answer.Also when I was in High school I got these for £1.99 all the time, so how is it a deal? At a total loss.



As a current A-level maths student, I can confirm you can use graphical calculators. The ones banned are the ones that allow symbolic integration.

I can't say there is really a huge benefit of having a graphical calculator over this one though.

dajg;4107456

Personally unless you are going for an A* at GCSE I would steer clear of … Personally unless you are going for an A* at GCSE I would steer clear of this calculator and get a Sharp.Problems with this calculator for "less able" students include:squaring negatives - if your type in -2^2 it gives you -4 !!Use of surds - type in 10sin60 and it will reply 5root3 not 8.66... also 5 divided by 2 is 5/2 not 2.5You can solve the surd problems by going to setup->LineIO but the negatives squares problem remains. The Sharp will automatically put the -2 in brackets before squaring giving you the right answer. This leads to a lot of mistakes on quadratic graph plotting since most people don't even realise this.



You are meant to put the negative you are squaring in brackets, otherwise it won't know whether you mean the negative of the value squared, or the negative squared.

Press the F - D button and it changes it to a decimal. The surd function is very useful as many questions ask for the exact value, so if it gives you a decimal you won't be able to use the calculator - you would have to do the whole question using the rules of surds. As you say, you can turn it off if you don't want it.

Most maths students don't realise the calculator isn't including the negative sign in the square? I've never met one that didn't know how to use the calculator, its common sense really.

Original Poster

Must of just been on offer at my store then... shame really, as it was a brilliant price.

In reference to the post about the Surds and Decimals, it is not a flaw. You can change it in the settings to give the answer in decimals (by switching it to the LinIO [linear input/output] mode I think), or toggle by hitting the SD button. It is very useful as surds are exact while decimals are often approximate.

Also, to be honest (and I'm not being mean here), any student who doesn't know that -2 squared is 4 and not -4 really shouldn't be doing A level maths. There are things that are WAY more complicated in the paper! I would go along with that argument if we were discussing GCSE, but what hope does somebody have of tackling integration if they can't do [simple] multiplication properly without a calculator! I thought that this two negatives make a positive stuff was a primary school thing...
*hums to if you're happy and you know it* "A minus times a minus is a plus..."

I've had either this calculator or one very similar to it for about 8 years now (since I started secondary school). It still works perfectly,
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