Addition and subtraction with regrouping using different strategies to solve. In this lesson, students go over addition and subtraction with regrouping using different strategies to solve.

Julia begins with a Number of the Day warm up activity, followed by practicing 2 and 3 addition and subtraction equations, with and without regrouping, using base 10 drawings, expanded from ...

Previously in Massachusetts, students were introduced to the algorithm for multi-digit addition and subtraction in 2nd grade. In California, students learned the algorithms for addition ...

Want to help your second-grader master the basics of 2nd grade math? Here are some of ... Understand that in adding two three-digit numbers, you are adding hundreds and hundreds, tens and tens ...