What is wrong with my TI-89 calculator? Whenever I try to calculate something, it gives me the wrong answer.
For example, 160 divided by 50 will come up as 16/5.
The calculator seems to be simplifying everything I put into it, rather than actually calculating it.
I tried resetting it by press 2nd, Mem, F1 and resetting everything I could but it still doesn't work.
How do I fix this?
I accidently sat some books on my calculator, and the screen went black...how do I make it go back...
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