Multiply by 5 using the grouping of objects, counting by fives, and arrays. Explore the Multiply by 5 facts using the grouping of objects, counting by fives, and arrays. Compete against characters to ...

According to research by the author of Playful Interactions Dr. Karyn Purvis, scientists have determined that it takes approximately 400 repetitions to create a new synapse in the brain — unless it’s ...

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?

Many students with math disabilities find complex, multistep math problems particularly difficult. Even children who did well in their early school years -- easily learning basic arithmetic and math ...

Low mathematics achievement is a persistent problem in the United States, and multiplication is a fundamental area in which many students manifest learning difficulties. This study examined the ...

Once Sanaa Hiremath, 11, was home schooled, she found she could do math without writing problems down. She has a Guinness World Record, finishing a 12-digit multiplication problem in under 10 minutes.