作者：The Princeton Review 字数：7.4万字 出版社：Random House Children's Books

Even in a world where every cell phone is also a calculator, basic math competency is a must! In this book, you'll learn how to efficiently solve common problems and effortlessly perform foundational math operations like addition, subtraction, multiplication, and division. Once you've got that down, we'll go over how to handle the scary stuff—like exponents, square roots, geometry, and algebra.

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