Question about Texas Instruments TI-15 Explorer Calculator

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Multiples On the old math explorers we could get multiples just by entering  + (a number) = =  = = = like + 6 = and get 6, 12, 18, 24, 36...... On the TI15, we can't figure out how to do this.  We really need to be able to get lists of multiples for our new math program. We just purchased 100 of the calculators for our fifth grades, so any help would be appreciated.

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Hello,
You can still that on the TI 15 explorer (look for constant calculations page 57 in your user manual or maybe the teacher's guide that you can download from education.ti.com)

1. First you define the operation you want to perform, using the OP1 key as follows
[OP1] [+] [6] [OP1] this sequence stores the operation you intend tu use repeatedly.
2. Since you want multiples you must start the sequence with 0
You do that by keying in the number 0
3. Press [OP1] repeatedly.

Each time you press [OP1] a counter shown on the lower left corner of the screen increases its value by 1, and the result (on the lower right corner) shows you the next multiple.

If you just want to add the same number repeatedly starting from some chosen number, in step 2 above use any number but zero.

[OP1] [+] [6] [OP1]
2
[OP1] [OP1] [OP1 etc.
will generate the numbers 2+6=8, 14, 20 etc.

Hope it helps

Posted on Aug 20, 2009

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How do I dived 9 dived by -1 5/7


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+ 9 divided by minus 1.7142= minus 5.1688

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For what follows I'm going to assume you have at least version 2.53 of the operating system for the 84Plus. If you have an older version, I STRONGLY recommend you update it:
http://education.ti.com/educationportal/sites/US/productDetail/us_os_84plus.html

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The primary key to enter something that resembles a fraction is the division key, the one above the multiplication key.
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To keep the result of a division as a (reduced) fraction use the [|=>Frac] or [ToFrac] command. It is accessible by the following key sequence
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Thank you for rating the solution.

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Hello,
You should specify your calculator and avoid posting the same question multiple times.)
Here is the solution for FX-300ES

Between the x`squared key and the log key there is a key with an x with a raised small figure of a solid square. That is the key you use to enter arbitrary exponents.
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Hello,
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.3684 [MATH][1:ToFrac][=] gives 921/2500 but
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