| 1. | Julie's mother is buying some fabric to make her a dress. She has $25.00.  She needs 1.7 m.  The fabric she chooses costs $16.00 a metre.  How much will the fabric cost? | 
|  | a) | Estimate the cost of the fabric. Explain your strategy.
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|  | b) | Which mental calculation strategies could you use? | 
|  | c) | Use a paper and pencil to show your work to calculate the exact cost. | 
|  | d) | Use a calculator to determine if she has enough money. Write in order, the keys that you used.
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|  | e) | Discuss the advantages and disadvantages of each of the above methods. | 
|  | f) | Which method are you likely to use if you have $35.00 to spend? | 
|  |  | i) | at home the night before the actual purchase | 
|  |  | ii) | at the store at the time of the purchase | 
|  |  | iii) | in the car on the way to the store |