HELP! I cant find the negative number button on my dd scientific calculator

[wy_kid_wrangler04]

Does anybody have a TI-30X IIS? If so, Where on earth is the button that changes the number to a negative?????

[Twigs]

I can't see the photo at TI well enough, will the guide help? Check out the examples on page 3.

 

http://education.ti.com/educationportal/downloadcenter/SoftwareDetail.do?website=US&appId=6134&tabId=2

[wy_kid_wrangler04]

I think I found it, but its very different than what her Chalkdust book is telling her to do. I wonder if I really have to get the $130 calculator they recommend?? :confused: I wonder if this will cause problems later?? :confused:

[Dana]

On the TI-30XIIS, the negative sign is on the bottom row.

The keys are

0 . (-)

 

The (-) is your negative sign.

Keep it distinct from the subtraction sign (under the x and above +).

 

This model should work just fine through algebra 1 (and probably beyond). If you have questions on how to enter something or what they're telling you to do post & ask! (Or send me a PM if you want & I can probably help - I've got the TI-30XIIS and the 83 & 84 graphing calcs too.)

 

You wouldn't push a key to change a number to a negative... you'd just enter the number as it is.

 

For instance, if you're adding 3 + (-6), you'd enter

3 + (-) 6 =

 

On older scientific calculators, you sometimes would have to enter

3 + 6 (then hit negative key to get -6).

You don't need to do this on the 30XIIS - you get to enter it just like it looks :) Much much nicer!