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The TI-30X IIS is a two-line scientific calculator with an 11-digit display, fraction and mixed-number entry, and a solar cell backed by a battery. It shows the expression on the top line and the result below, so you can check what you typed before you press enter. It is the standard choice for middle school, high school and intro college math and science, and it is simpler and cheaper-feeling than graphing calculators while doing more than a basic four-function model. Teachers and test rules usually allow it, and owners like the sturdy keys and the clear two-line screen.
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Lowest price we've seen: $13.88 on Nov 9 at Amazon. Tracked across 1 store since Nov 9.
Reviewers and owners treat the TI-30X IIS as a reliable school and test calculator. They praise the two-line screen, the fraction keys and the build, and they accept the lack of graphing as the trade-off for simplicity.
