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 ...

Michael Jenkins was skeptical when his parents signed him up for a summer academic program at Jamestown High School. But after he and his classmates solved algebra problems and plotted points on a ...

Multiply by 7 using the grouping of objects, arrays, and facts you already know. Explore the Multiply by 7 facts using the grouping of objects and arrays. Compete against characters to see who finds ...

You probably haven’t had to do longhand math in years, but you do mental math every day. Or maybe you google math problems ten times a day, because you’ve forgotten how to do any math beyond your ...

Want to help your fifth-grader master math? Here are some of the skills your fifth-grader will be learning in the classroom. Explain or illustrate how you solved this problem. Tip: Highlight ...

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?