Edexcel IGCSE Maths 复习笔记 1.15.1 Best Buy

Edexcel IGCSE Maths 复习笔记 1.15.1 Best Buy

How do you tackle “Best Buy” problems?

  • You may need a range of skills…
  1. Decide on a suitable comparison – eg total cost, cost/year, cost/m2 etc)
  2. Be consistent with units – convert if necessary
  3. Do the calculations – showing working carefully
  4. Make sure you answer the question, with reasons

Worked Example

转载自savemyexam

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