Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

He was supposed to be working on long-form multiplication problems—457 x 214, 378 x 29, 112 x 978—and my son kept asking me to check his answers. But it had been so long since I’d written out any math ...

Use multiplication to tell "how many." Multiply by 2 using the grouping of objects. Explore multiplication to help us tell "how many." Multiply by 2 using the grouping of objects and arrays. Connect ...

Multiply by 8 using the grouping of objects, arrays, and facts you already know. Explore the Multiply by 8 facts using the grouping of objects and arrays. Compete against characters to see who finds ...

When you multiply decimals by integers (whole numbers), you can use everything you already know about multiplying multi-digit numbers. You can use written or mental methods to multiply decimals by ...

Ah, math. It’s why I became an English major. But now math is spinning back around and haunting me in the form of my fifth grader. Last night, I found myself dealing with how to multiply fractions as ...

This summer, battle lines were drawn over a simple math problem: 8 ÷ 2(2 + 2) = ? If you divide 8 by 2 first, you get 16, but if you multiply 2 by (2 + 2) first, you get 1. So, which answer is right?

In DeKalb County, Ala., elementary school math classes have gotten noisy. In a good way. Instead of worksheets and textbooks, children practice adding and subtracting with tiny toy bears. They ...