Can I use two calculators simultaneously (Math lvl2)?

Test Preparation SAT Subject Test Preparation
1

<p>Hi,</p>

<p>I was wondering since I am not that familiar with my new graphic calculator
if I can use it AND my scientific one with which I have years of practice?</p>

<p>Thanks!</p>

2

<p>I used both my TI-84 and TI-89 on my test.</p>