Math Mights, you are doing great job with these word problems. You are going to get the trash can subtraction game to play with a friend. I hope you have a lot of fun with it.

Explains the concept of zero in mathematics, emphasizing its role as a number that represents the empty set. It illustrates how zero is used in addition and subtraction, showing that adding or ...

Teaching in Room 9. Open Number Lines 2 | 2nd Grade Math. Special | 28m 38s Video has Closed Captions | CC. Addition & subtraction strategies to solve two-digit equations using an open number line.