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Edexcel IGCSE Math A Foundation 2.2 A Evaluate Expressions By Substituting Numerical Values Questions

Practise replacing letters with numerical values and following operations, powers and number-machine steps in the correct order.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Exam points

  • substitute a negative value in brackets before evaluating a power
  • follow each number-machine operation in sequence from input to output

Edexcel IGCSE Math A Foundation 2.2 A Evaluate Expressions By Substituting Numerical Values Questions question 1

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Here is a number machine.

Figure for Question Edexcel IGCSE Math A Foundation 2.2 A Evaluate Expressions By Substituting Numerical Values Questions question 1 — Edexcel IGCSE Math A Foundation

Work out the output when the input is 8

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