Your instructions for bringing your Mathex eportfolio up to date is at the bottom of this page.

Problem Solving:
1. The Adams family was going to buy a car for $5800. The car dealer offered the Adams family two options for buying the car. They could pay the full amount in cash, or they could pay $1000.00 down and $230.00 a month for 24 months on the installment plan. How much more would they pay for the car on the installment plan?
2. Lisa Lilly was the best runner in the Year 8. One day she ran 100m in 40 seconds, 200m in 1 minute and 10 seconds, and 200m over low hurdles in one and a half minutes. How many more seconds did it take her to run the 200m over low hurdles then it did to run the 200m dash?
3. Three students have to write a make up test. Mark scored 24/60 on his first test and 32/40 on his make up test. Jake scored 35/70 on his first test and 54/60 on his makeup test. Marilyn scored 27/90 on her first test and 45/50 on her second test.
A) Which student improved the most and by what percentage?
B) If the teacher gives each student a final mark using 70% of the makeup test mark and 30% of the first test mark, what mark would each student receive? Who did the best overall?
4. Joe's rich uncle gave him a looney on his first birthday. On each birthday after that he doubled his previous gift. By the day after Joe's eight birthday, what was the total amount that his uncle had given him?
5. A large piece of construction paper is .01mm thick. It is cut in half and one piece is placed on the other to make a pile. These are cut in half and all four pieces are placed in a pile. These four are cut in half and placed in a pile, and the process is continued. After the pieces have been cut and piled for the tenth time, what is the height of the pile in cm.
6. What is the sum of all the digits in the sequence 1, 2, 3, 4, 5, 6, 7,...99, 100?
NOTE: (Sum of the digits, not the numbers!)

7. Bart Simpson decided to make a graph of his weekly earning of $120.00 from his paper route. To make the size of each sector proportional to the amount distributed what does the angle x in degrees have to be?external image 8-13.gif

8. The Gillis's house has a pool with the shape as shown. They want to make a cover for it for the harsh winter. How much to the nearest cent are they going to have to spend on material if it costs $5.00/m2.external image 8-15.gif

9. Lisa Simpson was in her maths class. She was told to make a figure with four thumbtacks, an elastic band and a piece of wood. She made the following figure. Her math teacher measured some of the sides of her figure and told Lisa to find the length of the side LM in mm. Can you help her?external image 8-16.gif
10. Matthew is at a zoo. He takes a picture of a one-metre snake beside a brick wall. When he developed his pictures, the one-metre snake is 2cm long and the wall is 4.5cm high. What was the actual height of the brick wall in cm.

E-portfolios:
This week you will need to make sure your e-portfolio is up to date.
Please check your goals and problem solving voicethread are linked and work correctly.
Please make sure you have completed:
  1. My Learning link with a Mathex link in it.
  2. When I click on your mathex link, there will be a Mathex title page with the following links - Goals, Learning Log, Problem Solving. All these should be completed and the links should all work.
  3. What it means to be in Mathex in the right column on your title page should also be completed.
  4. A new heading should be added to the mathex title page called 'Problem Solving Voicethread'. Copy the code on the voicethread from this wiki and paste to the source on this new page.
  5. You can also put an entry into your Learning Log for Term 1 and Week 1 T2.

When I look at your e-portfolios this week, I should see -
  1. My Learning link with a Mathex link in it.
  2. When I click on your mathex link, there will be a Mathex title page with the following links - Goals, Learning Log, Problem Solving Voicethread, Problem Solving. All these should be completed and the links should all work.
  3. What it means to be in Mathex in the right column on your title page should also be completed.
  4. If you are unsure how to make any of the links above, please see me this week to go over it.