Week 4: Math Videos (due Monday 9/15/14) and Weekly Word Problem (due Friday 9/19/14)

Watch the following videos on Adding and Subtracting Numbers with Decimals, and Using Compatible Numbers.
Work the problems and answer the questions that are posed to for in each video.
Turn your answers in on lined paper with the proper heading for a homework grade.


ADDING AND SUBTRACTING DECIMALS

For this video, watch and answer these questions.

1.  Using the rule in the video, find the sum of 17.63 + 804.6

2.  What happens to a number when you move its decimal point to the right?

3.  What happens to a number when you move its decimal point to the left?

YouTube link: https://www.youtube.com/watch?v=V6pZyY6mM3g


USING COMPATIBLE NUMBERS

YouTube link: https://www.youtube.com/watch?v=F1evNMv1aIM&list=UUnEDbtNN5JDeFd-jAqO8mcw



WEEKLY WORD PROBLEM
Read the problem twice.  Circle key words.  Choose a strategy to solve the problem.  Solve the problem (make sure to label and circle your answer).  Double check your work to make sure of your answer.  Finally, explain how you got the answer(s).  Your explanation should be at least 3 sentences long.

Mona needs to catch 12 grasshoppers to feed her pet snake.  She figures it takes her about 3 minutes to catch each one.  If there is one-half hour before her school bus comes to pick her up, does she have enough time to catch all the grasshoppers she needs?  Explain why or why not.