Costco Sale: Casio Scientific Calculator with Travel Size Calculator $9.99

*UPDATE* 7/14/15. Costco has the Casio Scientific Calculator fx-300ES with Travel Size Calculator on sale for $9.99 (after manufacturer’s instant rebate), now through July 26, 2015. That is $3 off Costco’s regular price of $12.99. While supplies last. Suggested Courses: General Math, Algebra I & II, Geometry, Trigonometry, Statistics, Science and Biology. For reviews on this item, check out Amazon: Casio FX-300ES Plus Scientific Calculator. Features: • Natural textbook…