Edexcel IGCSE Maths复习笔记 1.14.1 Exchange Rates
Edexcel IGCSE Maths复习笔记 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
转载自savemyexam
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