Author: vuurrobin (Robin Peters)
Date: 5 april 2008
Place: The Netherlands
Project: practicing head calculating
Platform.: TI-83+ \ TI-84+ series
version: 1.0
tested on: TI 83+ OS 1.17 and TI 84+

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About this program l
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This program is meant to practise doing calculations in your head, so you can do them easier and faster when you need to. you will get 10 sums that you will need to calculate and type in correctly as fast as possible. the type of sums will be a mix of A+B, A-B, A*B and A/B. your score will be based on the number of sums you got correct and the total time it took you to finish. 


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Using the program l
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After sending the program to your calculator, execute it from the program menu or from mirageos to get to the title screen. read it (or not) and then press a key to start calculating. 
you can enter the numbers with the number keys.

the numbers can be negative but they are always rounded to whole numbers, so 1/10 is 0 and not 0.1. if you make a mistake, you can delete a number with the [del] key.

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credits and legal stuff l
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this program has been tested and hopefully there are no bugs left. but if you found one, please tell me.

this program is written in basic, so there isn't much risk in using this, but I am not responsible for anything that can happen (data erased, ram clears, exploding calcs :P).

thanks to the people of www.ti-wereld.nl for helping me.

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contact l
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if you have any comments, questions, suggestions, bugs or just want to contact me,
then email me at vuurrobin (at) hotmail (dot) com 
or contact me on www.unitedti.org or www.ti-wereld.nl. my nickname is vuurrobin on both sites.
