TI-30XS Calculators are allowed during the GED® tests.  We strongly encourage you to practice and learn using your own calculator prior to taking your test. 

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Our lessons help walk through each of the calculator functions that you will need.  But you can also find calculator practice on the GED Testing Service website.

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You may find used calculators at thrift stores because they are very commonly used in schools. You can also buy them new at: