1. + Math: Addition and Subtraction Finding the Missing Factor in ADDITION & SUBTRACTION PROMLEMS

2. + Today’s Math Goal Students will be demonstrating their ability to write Math problems. Students will be demonstrating their ability to find a missing factor in an addition problem. Students will be demonstrating their ability to find a missing factor in a subtraction problem. Key Words: Factor, Equation, Problem, Difference & Sum You will need: pencil, eraser, math notebook.

3. + Today’s Math Lesson – A Little Review What is the METHOD for finding the MISSING FACTOR in an ADDITION EQUATION? [2 minutes] What is the METHOD for finding the MISSING FACTOR in a SUBTRACTION EQUATION? [2 minutes] What is the difference between an EQATION and a PROBLEM? [2 minutes]

4. + Today’s Math Lesson June had $450. Her mom told her not to spend more than $100. She went shopping and bought some things. She came home with $328 dollars left. A) How much did June spend? B) Did June spend more than she was allowed to? NOTE: How much time do you need to solve this problem?

5. + Today’s Math Lesson Paul had $327 dollars. He went to work and got paid. He came home with $8 764 dollars. A) How much money did Paul make at work? Extra Time? Write your own ADDITION MISSING FACTOR PROBLEM?

6. + Practice Time! Jason collects stamps. He went to the stamp convention with 5 7324 stamps in his collection. He came home with 9 111 stamps in his collection. A) How many stamps did Jason buy at the stamp convention?

7. + Practice Time! Patrick sells hats at his HABIDASHERY (that might be a new word for some of you!). He started his day with 10 000 hats in his store. He ended his day with 8 723 hats in his store. How many hats did Patrick sell in one day?

8. + Practice Time! Aquaman saves many lives. On Monday he saved a boat from crashing and saved 4 561 lives. On Tuesday he stopped a flood and saved X number of lives. When he woke up on Wednesday morning he had saved a total of 10 000 lives. A) How many lives did Aquaman save on Tuesday?

9. + Practice Time! The Beatles sell many concert tickets. Their show has a total 9 874 tickets to sell. After the first day of sale there are 89 tickets left to sell. A) How many tickets did their concert sell in its first day?

10. + Practice Time! Now write and solve your own MISSING FACTOR ADDITION PROBLEM! Now write and solve your own MISSING FACTOR SUBTRACTION PROBLEM!

11. + That’s it for today! Thanks for all of your hard work!