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

You use addition to find the total amount, when you have two or more numbers. You use the addition symbol (+) to add numbers together and then the equals symbol (=) to give you the answer. Let's add ...

When you are solving an addition calculation with a two-digit number, you need to think about tens and ones. A place value chart can help you to see the value of each digit in a number. For example, ...