Casio FX-991ES PLUS 2 Scientific Calculator — Student Essential, 1000+ Reviews! Now CA$21.97

The most common calculator in Canadian high school and university exams, the FX-991ES PLUS 2nd edition is now CA$21.97 (was $24.97, saving 12%). 4.7 stars, 1,000+ ratings, Amazon's Choice, 400+ sold monthly.

Natural Textbook Display shows square roots, fractions, and exponents as they appear in textbooks — no squinting at a single-line display. Handles numerical calculus, 4×4 matrices, vector calculations, bivariate statistics, and complex numbers. From high school functions through first-year university calculus, it covers everything.

The key advantage: it's exam-legal. Not a graphing calculator, so no risk of being banned, but far more powerful than basic scientific models. Battery-powered, one battery lasts the entire semester.

At just over twenty bucks for a proven exam companion, it beats ordering one from overseas and hoping it arrives on time.

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