Learn how to calculate circle revolutions and the distance circles travel. Also discover the coin rotation paradox and its applications. Circle Revolutions and the Coin Rotation Paradox This entry was posted on December 5, 2023 by Anne Helmenstine (updated on December 11, 2023)

Learn how to add fractions. Get step-by-step instructions and examples using simple and mixed fractions and one with negative numbers. How to Add Fractions This entry was posted on November 26, 2023 by Anne Helmenstine (updated on December 1, 2023)

Learn about the identity property in math for addition, multiplication, subtraction, and division. Get example problems. Identity Property in Math – Definition and Examples This entry was posted on October 3, 2023 by Anne Helmenstine (updated on October 4, 2023)

Learn about imaginary numbers in math. Get examples, see how to perform arithmetic operations, and learn the uses of complex numbers. Imaginary Numbers This entry was posted on September 27, 2023 by Anne Helmenstine (updated on October 3, 2023)

Learn about the commutative property in math. Get the definition and examples of the property and compare it to the associative property. Commutative Property in Math – Definition and Examples This entry was posted on September 10, 2023 by Anne Helmenstine (updated on September 22, 2023)

Learn the difference between concave vs convex for lenses, mirrors, polygons, and mathematical functions. See how to remember the difference. Concave vs Convex This entry was posted on September 9, 2023 by Anne Helmenstine (updated on September 16, 2023)

Learn about the associative property in math. Get the definition and examples for addition and multiplication. Associative Property in Math – Definition and Examples This entry was posted on July 23, 2023 by Anne Helmenstine (updated on September 10, 2023)

Get the quadrilateral definition and learn about quadrilateral shapes and properties. Get geometry facts and example problems. Quadrilateral Shapes and Facts This entry was posted on July 18, 2023 by Anne Helmenstine (updated on September 9, 2023)

Get the ratio and proportion definitions and examples in math and everyday life. See examples of worked problems. Ratio and Proportion in Math This entry was posted on July 4, 2023 by Anne Helmenstine (updated on July 11, 2023)