Choose appropriate methods of calculating (2)

More on choosing the most appropriate method of calculating.

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An atlas with time zones is needed for the first activity and there are line graphs on time to interpret.

When answering these problems say which operation is needed and whether it can be done mentally, on paper or with a calculator.

Purchasing various items from a vending machine. Tricky calculating with money.

Tricky calculations working out the best and worst meal deals.

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