Addition and Subtraction

To educators:

Students have been learning how to add and subtract, at this level they’re learning how to add and subtract two-digit and three-digit numbers. In this unit, students will have access to videos that help better their understanding on how to add and subtract multiple digit numbers.

Includes: Learning objectives, discussion questions, and follow up questions/ homework.

Learning Objectives:

After this lesson students will be able to:

-Add two-digit numbers

-Subtract two-digit numbers

-Add three-digit numbers

-Subtract three-digit numbers

Adding Double Digit Numbers

Subtracting Double Digit Numbers

Adding Triple Digit Numbers

Subtracting Triple Digit Numbers

Discussion Questions

1. What patterns do you notice?

2. What is this similar to? What makes you say that?

3. How might you explain how to do this to one of your classmates?

Homework

1. 23 + 45 =                2. 67 – 26 =

3. 87 + 11 =                4. 32 – 17 =

5. 232 + 174 =            6. 303 – 121 =

7. 423 + 111 =            8. 213 – 103 =