Edexcel IGCSE Maths復習筆記 1.14.1 Exchange Rates
Edexcel IGCSE Maths復習筆記 1.14.1 Exchange Rates
Simplifying exchange rate questions
Use ratios!
- Put exchange rates in?ratio?form (use more than one line if necessary)
- Add lines for prices/costs
- Use?scale factors?to complete lines
- Pick out the?answer!
It can be that simple!
Worked Example
轉載自savemyexam
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