Addition and subtraction of 2-digit numbers (regrouping and adjusting)

In this lesson, we will learn how to use the "Make ten strategy" to add ones.

In this lesson, we will learn how the make ten strategy can help us add two digit numbers with one digit numbers.

In this lesson, we will learn how to add two, two digit numbers by partitioning one number and partitioning both numbers.

In this lesson, we will learn how to add 2 digit numbers by partitioning one or both numbers.

In this lesson, we will learn how to use the "Make 10" Strategy to help us subtract ones from 2 digit numbers.

In this lesson, we will learn how to subtract two digit numbers and ones with regrouping by using a part whole model to help us.

In this lesson, we will learn how to subtract two digit numbers by using dienes cubes to represent our mental calculations.

In this lesson, we will learn how to subtract 2 digit numbers using number lines to represent our mental calculations.

In this lesson, we will learn how to use whole-part models to help us solve addition and subtraction word problems.

In this lesson, we will learn how to solve addition and subtraction word problems with the help of bar models.

In this lesson, we will learn how to use the "Round and Adjust" strategy to help us solve addition equations.

In this lesson, we will learn how to use the "Round and Adjust" strategy to help us solve subtraction equations.

In this lesson, we will learn how to add near doubles.

In this lesson, we will solve addition and subtraction equations using a variety of strategies.

In this lesson, we will solve addition and subtraction word problems.