Need help with my sci calculator

Hi i just need some help understanding why my calculator does this. When i multiply a decimal by a decimal. For example 0.02x0.1 i get a weird answer which i do not have the mathematical knowledge to understand (the answer is 2x10-3 that was meant to be a power to negative 3) when the answer is 0.002 is there a setting i can put it on or something.

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Reply 1

09HB

Is it a Casio calculator?

H

Yep its a casio

Original post by quickmagma

Yep its a casio

Press shift, then 9, then 3. This will clear the memory, settings and anything else that may have happened to this - always a default fix on the casios; chances are it's in radians mode or similar.

If the problem still persists, let me know. Please quote me or PM me though cause it doesn't come up in my notifications otherwise.

Hope that helps

H

Reply 4

rcmack

Original post by 09HB

thanks! helped a lot :biggrin:

Reply 5

09HB

Original post by rcmack

thanks! helped a lot :biggrin:

No worries, glad I could help. Always one to remember in exams when people have been fiddling with the thing :tongue:

Reply 6

rcmack

Original post by 09HB

No worries, glad I could help. Always one to remember in exams when people have been fiddling with the thing :tongue:

ahh i remember in my gcse maths last year my calculator was in radials, and i was like '****'

Reply 7

09HB

Original post by rcmack

ahh i remember in my gcse maths last year my calculator was in radials, and i was like '****'

Happened to me too.. I nearly stabbed the person who did it afterwards!! Not so bad now doing A-Level Maths and knowing what the Radians bit actually does :smile:

Reply 8

rcmack

Original post by 09HB

Happened to me too.. I nearly stabbed the person who did it afterwards!! Not so bad now doing A-Level Maths and knowing what the Radians bit actually does :smile:

ah is a level maths hard?
im doing admaths this year because i took my maths gcse this year and its soooooo hard

Reply 9

09HB

Original post by rcmack

ah is a level maths hard?
im doing admaths this year because i took my maths gcse this year and its soooooo hard

Yeah... don't do A-level :tongue:

I got an A* at GCSE and A-Level is still a total headf***, to be quite honest.

H

Reply 10

rcmack

Original post by 09HB

Yeah... don't do A-level :tongue:

I got an A* at GCSE and A-Level is still a total headf***, to be quite honest.

H

yea im considering not doing it, but i think our school expects you to take a level if you get an A* in maths.

Also, is there an exam where you dont have a calculator? :/

Reply 11

09HB

Original post by rcmack

yea im considering not doing it, but i think our school expects you to take a level if you get an A* in maths.

Also, is there an exam where you dont have a calculator? :/

There is; Core 1. It is an anus ( I think i'm allowed to say that...?), and most people resit it in Y13. However, as they're changing it to a new 2-year course, I personally wouldn't suggest it unless you are 100% sure on what you've already done, and are wiling to spend every waking moment for the next 2 years trying to work out why this equation relates to that circle when differentiated in this way.

It's not nice!

H

Reply 12

rcmack

Original post by 09HB

is it basically gcse maths without a calculator?

Reply 13

09HB

Original post by rcmack

is it basically gcse maths without a calculator?

Not really. The GCSE stuff is used, but also built upon (like using the SOHCAHTOA and pythagoras on graphs to find the distances from one line to the other through the axis or another certain point).

http://www.cie.org.uk/images/164759-2016-syllabus.pdf

Probably not a board you'll use, but the content should be similar... Have a look and see what you think

H

Reply 14

govandpolitics

Original post by rcmack

is it basically gcse maths without a calculator?

lol nope

https://917c8db4f385e20466384eff57d816b2bed188db.googledrive.com/host/0B1ZiqBksUHNYMVhvRUNrcWJ6LXM/June%202014%20QP%20-%20C1%20Edexcel.pdf

Reply 15

09HB

Original post by govandpolitics

lol nope

https://917c8db4f385e20466384eff57d816b2bed188db.googledrive.com/host/0B1ZiqBksUHNYMVhvRUNrcWJ6LXM/June%202014%20QP%20-%20C1%20Edexcel.pdf

Prob a more useful link than mine!

H

Reply 16

rcmack

Original post by govandpolitics

lol nope

https://917c8db4f385e20466384eff57d816b2bed188db.googledrive.com/host/0B1ZiqBksUHNYMVhvRUNrcWJ6LXM/June%202014%20QP%20-%20C1%20Edexcel.pdf

wow, i have use a calculator to find the answer to questions like '5+7'

Reply 17

rcmack

Original post by 09HB

Prob a more useful link than mine!

H

wooooow getting kinda worried now

Reply 18

09HB

Original post by rcmack

wooooow getting kinda worried now

Tbh, it's prob better to be worried and know what to expect than just go into it like I did and be slapped around the face, quite hard, by the contents of the textbook.

H

Reply 19

rcmack

Original post by 09HB

Tbh, it's prob better to be worried and know what to expect than just go into it like I did and be slapped around the face, quite hard, by the contents of the textbook.

H