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Monday 11/23- Module 2 Lesson 8

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Lesson 8 EQ: How can you fluently multiply multi-digit whole numbers using the standard algorithm and using estimation to check for reasonableness of the product?

You will need your whiteboard & marker to work alongside the video. As you watch the video, it will stop occasionally to ask you a question. You need to answer the questions under the video.

(You will need to scroll down to see them, there are 7 questions)

After you watch the video & answer the 7 questions, there will be 2 Problem Sets that you need to complete (by showing your work on the screen).

*If you are at school for this lesson, you will complete the Problem Sets in your Math Notebook instead of on the computer*

This assignment is worth 100 points.
Question 1
1.

#1- We need to first ESTIMATE 312 x 149 before we actually solve this problem.  How could we estimate 312 x 149, if we were to round each factor to the nearest HUNDERED?

Question 2
2.

#2- Why do you need to place 2 zereos?

Question 3
3.

#3- Finish solving this multiplication problem.  What is your final product of 312 x 149?

Question 4
4.

#4- Explain why 300 x 150 is a much closer estimate that 300 x 100.

Question 5
5.

#5- Does this word problem want you to find the EXACT product? If not, what is it wanting you to find?

Question 6
6.

#6- How could you find a reasonable estimate for 1912 x 305?

Question 7
7.

#7- Explain the benefit of estimating before solving the problem.

Question 8
8.

Problem Set #1-
Click on "Show your work". Use the "text box" or "scribble" tool to answer the questions.

Don't forget to show your work to receive FULL CREDIT!

*If you are in class on the day that you are completing this lesson, you will complete this in your Math Notebook!*

Question 9
9.

Problem Set #2-
Click on "Show your work". Use the "text box" or "scribble" tool to answer the questions.

Don't forget to show your work to receive FULL CREDIT!

*If you are in class on the day that you are completing this lesson, you will complete this in your Math Notebook!*