Ways to break apart numbers to solve addition & subtraction equations in a fact family. In this lesson, Julia reviews the ways to make 10 and how we can use these ways to break apart numbers to solve ...

Students put all of their addition and subtraction skills together to solve equations. In this lesson, students put all of their addition and subtraction skills together to solve equations. Julia ...

Tom Meyvis is in the Leonard N. Stern School of Business, New York University, New York, New York 10012, USA. Heeyoung Yoon is in the Leonard N. Stern School of Business, New York University, New York ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...

Oh, I didn't know you kept bees, Jerry? How many have you got? Oh look, Albert's found you some more! Ah, there you go! 95 more bees for your hive. So how many have you got in total now? Ah, don't ...