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. |
| 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. |
| 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 |